IssueTracker

Also, all other devices are working just fine on Wireless networks that are impacted. It doesn't seem to be all networks either.

Same problem on my Nexus 4, also from switching between WLAN and 3G there very often the connection will be lost until the flight modus will be set off and on again.

My Nexus 7 will not connect to wifi any more.  Just stopped working suddenly this evening. Last system update at 18.01 on 20/11/2012. Have tried using static IP on two different wireless networks.  I get a connection on both but only grey status bars (at full strength)and no internet connectivity (blue status bars). I updated DNS to setting in the router but still no connection.  Every other wifi device I have connects fine to both networks and to internet,including my Gingerbread Phone.    

Nexus 7 here. WiFi is set to be on all the time, but after screen goes off, I have to manually toggle WiFi to get data flowing again.

Same problem on my Nexus 7, but not only when the wifi bars are showing up grey ... even when the wifi bars show connectivity in blue, the actual wifi connectivity is sometimes hit and mostly miss.

I have the same issue on the nexus 7/4. Both drop wifi when sleeping, with the connection icon turning gray. I have to turn off wifi and reconnect to get it back. Haven't noticed this on the N10 yet though.

Same problem constantly losing connection all other devices in home are working fine.      Have to toggle between airplane mode to get it to reconnect. Annoying

Same for me on my Nexus 7. After a reboot it seems to be stable for a few hours but then disconnects the Wifi every few minutes and won´t reconnect before I switch Wifi off and on again.

Wi-Fi drops out on nexus 7 every few minutes and only reconnects for a minute at a time. Very frustrating. All other devices on network stay connected fine. seems to happen more in chrome, but also occurs in other apps too.

Seems completely random still,

Happens on my work network which is open/unsecured

In laws network w/ wpa2 does it. However my home network which is also wpa2 is fine.

I have similar problem on Nexus 4 but NOT Nexus 7. Both running 4.2 and on same router so doesn't appear to be router related. Settings are identical between two devices. This is a problem because my Nexus 4 won't receive emails or alerts while sleeping but my Nexus 7 does. Seems to be some weird issue for me related to Nexus 4. It's like the Google connection times out or doesn't stay alive.

Also I don't have to do anything once I turn on Nexus 4 screen it reconnects to Google and I get all my missed alerts etc. Very odd

Seeing this same issue on my Nexus 10.    I have quite a few other wireless devices that are on throughout the day and none of them are showing any issues.   My only other Android devices is a HTC EVO 4G LTE running 4.1 and it has had no issues.

Having the same intermittent connectivity on my Nexus 4 on wifi as well.  Phone connected fine on 4 different networks, but after sitting idle w/ screen off for several minutes the wifi connection would go dead.  It showed connected, but not synced w/ Google (grey icon instead of blue), and did not pass data.

Required cycling wifi off/on to re-establish active connection.  Phone is set to keep wifi alive always, but still dropped , even when phone was plugged in and charging.

[Comment deleted]

Same problem here with nexus 4. Wifi issues with some routers and serious problems connecting my laptop to the phone via wifi.

Same conectivity issues here with nexus 4 and nexus 7.

Having problems with my new 16GB Nexus 4. Seems like tons of packets are getting dropped somewhere. The frustrating part is that it seems to be fine for some things like downloading files through Chrome, doing speed tests, and syncing with Google, but the Play Store takes 2-3 minutes to download a single app. A logcat didn't reveal much useful info. I can provide one if needed.

Phone: Nexus 4 (4.2 build JOP40C)
Router: Buffalo WZR-HP-G300NH2 (DD-WRT build 18000)
Wireless Settings: NG-Mixed, AES, 2.4GHz, 20/40MHz width, channel 11.

Changing the channel and channel width did not work. Changing to N-Only and G-Only did not help.

What is going on? So many driver incompatibilities with DD-WRT... does anyone else have this problem? :(

Same issue here. After I used it for couple of minutes, it dropped connection and it was still showing full signal bars. Others devices are good. Really annoying.

Same for me with Nexus 4. Switching between wireless networks doesnt always happen automatically, eg between office and home. Usually 'thinks' it is still connected to office wifi even when I reach home. Turn off/on wireless and its fine again.

Seems like connection will get lost randomly. Youtube videos would pause to load. Gmail would say it needs to reconnect. Browser would randomly take a while to load a webpage

same

Anybody find a work around? Been trying all kinds of things and can't get rid of issue

Nothing has worked for me. Wife's nexus 7 on 4.1.2 is fine again.

Same here (holland)
Cannot connect with wifi standing next to router
This is useless. What a worthless product.
Is it possible to rollback to Android 4.1.2 (How??)

Google please fix that! Rollback to 4.1.2 is not possible without rooting the device.

same situation here. My nexus 7 is practically useless with a stable WiFi connection.

same issue here

Same here with my Nexus 7 32GB. But for me it is not (only) an issue of 4.2, already had those problems with 4.1.2

Seems like Google has no interest in fixing this problem...

We need to get more people to star this issue so it gets noticed. It's extremely annoying. I can't tell if it's the phone or the router since other devices including a Galaxy S3, Nexus 7 work fine for me. Just my Nexus 4 can't. My Nexus 7 is running the same exact build of 4.2 so not sure why the N7 works and N4 doesn't.

Same here guys, nexus 4 running 4.2 not going to root so I will have to suffer, :/

It's weird because the wifi connection is good but it will slow down big time for brief moment. Just enough to cause a reload in YouTube or hang up the browser. Wi-Fi bars are still good. My s3 would not have any pauses in YouTube but my nexus would. Only happens on Wi-Fi. Falls in line with the dropped packets that the other guy mentioned.

Ditto...

I have two Nexus 7's one 8GB WiFi and a brand new 32GB with HSPA+ and both of them have this insane WiFi issue.

The 8GB Nexus worked perfectly for months until two days ago and now I have a very nice and very expensive paperweight that I gave my girlfriend as an early Christmas gift, needless to say neither of us are happy about this situation forced on us...she is using her 1+ year old pathetic Kindle Fire while this very nice Nexus 7 sits there absolutely useless.

The 32GB HSPA+ Nexus worked fine for the first few days I had it then it started up with the WiFi issues (same as everyone else is having on this thread do not really need to go into sordid details) the WiFi dropping is a REAL PAIN IN THE ASS GOOGLE.

Do the right thing and fix this asap or you will be losing MANY customers who will always question ANY product they get from Google.

Same problems here.

Nexus 4 says its connected to Wi-Fi, but nothing seems to come down. Market is slow, cant sync Play Music.

Any joy on fixing this issue? Or word on an update to fix it?

I'm seeing this as well.  One of the side effects is that I don't receive incoming calls on either Sipdroid or GrooveIP when the Wifi goes to sleep.  I also don't receive emails until I turn on the phone.  No issues on my HTC Incredible.

To clarify, I'm running a Nexus 4 with the latest JOP40C ROM.

Same here. Nexus 10 32gb. The connection is dropped, sometimes it is coming back on its own, sometimes I need to push it manually. Routers are dlink 615, and virgin superhub.

Same with my Nexus 4, wifi dropping out

Same with my nexus7. I don't receive e-mail notifications when it's in standby.    

Same here.. nexus 7 will connect occasionally, and after some time (sometimes 30 second, sometimes much longer) the blue bars will turn grey, and internet is lost. All other devices work fine (Mac, nexus s 4.1.2, iPod).

Toggling wifi sometimes gets internet again, and usually only for a short period before graying out.

This issue has only appeared after 4.2 update!

I've also noticed this since upgrading to 4.2 on my Galaxy Nexus (yakju).

Exactly as described the cell and wifi icons are present but grey.

I have to periodically enable/disable wifi manually, and just like that a flood of notices/emails, etc. come through afterwards.

My nexus 10 drops WiFi randomly as well.  Since day 1 (yesterday...).  I've been using Google hangout and it just drops, I notice the WiFi icon will go grey and then it will reconnect to WiFi but the hangout drops.  I lose all internet from the device.  Internet does not drop for other devices.  I am using a Linksys router, wrt400n.  

Hi All

Give this a try. It seems to work for me on Nexus 7.
Go to: Settings/Wi-Fi/.../advanced and then Uncheck "Wi-Fi optimization"

Already tried that, made no difference.

I have the Nexus 7and 10, but am having the same problem as above with my 7 not my 10. I'm using my wifi and all of a sudden the bars go black and I go to settings and it shows my network as a saved network, but it says fails to connect to network. I toggle the wifi off and on and it reconnects for a little while then again it drops out. I hope google fixes this soon, I really like both my devices, but dislike this inconvenience.

I tried the suggestion from Comment #42 to disable "Wi-Fi Optimization" and it has resolved my issues with Sipdroid.  I can now receive incoming calls when after the phone has been idle for 10-20 minutes.  With the option enabled, incoming calls don't ring.

Let us know how your battery fairs w/ that setting off

***ATTENTION*** ***Possible Temp Solution***

Turn off "sync" and "GPS"
worked on my Nexus 7

I have 4.2 flashed to my Galaxy Nexus (GSM) and constantly drop WiFi, even when the phone is sitting within feet of the router.

Playing with the various settings under "WiFi > Advanced" makes no difference.

I contacted Google play support and they seem completely unaware of the issue.

Same problem on nexus 7

What is the return policy on these types of things

The US return policy is 15 days from delivery.

Same issue with my Nexus 7

same issue with my Nexus 4

Same issue here Nexus 4 - turned device on then off and seems to fix for a few hours then its back to this

do you guys think this is a hardware or software issue?

Software, because they worked fine before. But it might be half software, half slightly-faulty hardware? I don't know.

I would say software too, since the phone was working just fine until right after the 4.2 update.

Would be great to get an official acknowledgement/statement on this.

[Comment deleted]

After I changed the "Wi-Fi optimization" setting, the Wi-Fi has been stable. Haven't been able to detect a difference in battery consumption.

Nexus 7  

Wi-fi optimization does not affect the low signal issue.

[Comment deleted]

Has anyone tried WEP versus WAP?  Seems like WEP works fine.  This is still annoying if it doesn't work on WAP

If the issue is WEP vs WAP then I'm sure Google can make a update to fix the issue, its quite annoying because my nexus 7 requires a Wi-Fi connection top function correctly

Nexus 7 16gb version. updated to 4.2

constant wi-fi problems.. device unusable..
4.2 = wi-fi issues and increased battery drain.

how about roll us back to 4.1.2 google untill you fix this..

4.1.2 worked flawlessly.. wish i hadn't updated..

I´ve read somewhere that a custom firmware is known to solve this issues, perhaps we should attempt to fix the apparent software issue while google delivers a proper solution

 Franco kernel doesnt , let us know if you try any others.

I'm about to return my n4...

WEP is not an acceptable security method, neither is a MAC filter and/or hiding your SSID. All can be cracked in a few seconds.

WPA2 is the lowest grade possible encryption recommended today.

Same problem here.  Started with 4.2. Nexus 16GB. Fix it Google,  please!

Well my Nexus4 is going back, the touchscreen isn't responding at all.
It will interesting to see if the replacement still has the wifi drop out.

I was having similar issues with random WiFi disconnects and battery drainage on both my Nexus 7 and Nexus 4. Yesterday I disabled background sync in Currents and uninstalled the HD Widgets app and now everything seems to be back to normal.

I have currents disabled all together. Anyone have issue with beautiful widgets app?

Just turn off synchronize option and the problem is solved

Synchronization option for all accounts?

I tuned off all auto sync and it does seem to improve the performance (I still get random slow down/refresh when playing youtube in HD, but at least it doesn't shut down my entire wifi.  My old Sony Tablet S and gs3 plays them flawlessly with autosync ON).  It makes no sense to have this phone if you can't even autosync email.

ya thats the most worthless fix I have ever heard. Might as well not even have the phone.

has anyone had solid playback on HD youtube videos on this phone?

its definitely related to wifi settings on the router. My N4 has issues at home but works fine on work wifi and others. cant figure out what the magic sauce is yet.

I tried turning off sync for currents, but still having Wi-Fi dropping issues. Google yet to acknowledge that this is a known problem.

Nexus 7, WiFi bars gray most of the time, blue sporadically, and lag for days.

I have the same Wifi drop problems on my Nexus 7 on different Wifi Networks. Changing Battery optimization seems to make some difference but it has not disappeared. Very annoying bug.

A Google/Android employee needs to see this problem

This problem seems to be cropping up in the nexus 10 as well, which of course comes with android 4.2. It's a really nice piece of kit, which makes this little bug even more galling!

Do Google usually read these forums? If I had just released something as big as the nexus 10, I'd want to make sure that there's not too much publicity on it and try to get the message out there that Google are aware of the issues and are working on it!

4.2.1 was just released and some people are getting the OTA. Once you have it please test and post back if it fixes this issue.

Probably isnt the fix most are looking for but I installed AOKP november 26th build and for the first 3 hours at work I have not dropped WIFI or SYNC. I will let everyone know how the rest of the day goes but thats the first time it hasnt dropped.

I have returned two brand new Nexus 10 devices to Google Play as both would not connect to Wifi or would briefly connect and then drop connection all together. The interesting part is that Google Tech seems to be "Surprised" by this while so many users have issues.
I'll wait a month or two until they get their act together.

How do I download 4.2.1?

You can download it from http://android.clients.google.com/packages/ota/google_mako/625f5f7c6524.signed-occam-JOP40D-from-JOP40C.625f5f7c.zip

Ok then how do I put it on my Nexus 4?

same problem here WiFi drops for no reason.  Seems to happen more often with radius server at my job.  At home with time capsule and 5ghz network it seems a lot more stable but it did drop without reason.

Has someone tried 4.2.1? I tried to update my device, but under the system updates page my N7 says: "Last checked for update on 12/31/1961" and my date is configured properly. Google really messed this one up.

I have unchecked the battery optimization tab and have device (Nexus 7) to always have wifi on. Seems to have solved it for me.

Was short lived,

AOKP still has issue. Took a while to happen today but has occurred 3 times this afternoon on my works unsecured network.

Battery optimization unchecked also still causes it.


Got me at this point. Thank you google.

I´ve been trying to downgrade to 4.1 but I haven´t been able to downgrade the bootloader to 3.41 thus I´m unable to install the factory image.

I´m about to throw the towel and wait for google to accept this error and release a fix.

I've confirmed on my Nexus 4 this is definitely somehow related to the Wifi driver on the device not being compatible with certain WiFi settings. Without changing a thing on the phone, when I use other WiFi networks apart from my home wifi it performs much better and I don't miss notifications. This is at 2 different locations - one was corporate at work and one was in a public arena. The corporate work was WPA2/AES and the arena was unsecured.

I've tried changing my home wifi from WPA2 to unsecured but haven't changed anything. At this time the only possible solution is to find a way to use the Wifi module from an earlier version say 4.1.2? If someone can find the wifi driver we might be able to just overwrite the one in 4.2 and see if it works??

4.21 doesn't help- -
But I think it is  a little bit better.

I have this problem on the Nexus 4. It drops connection to my router, and then claims it's out of range. I have to turn off WiFi and turn it back on to fix. Happened once overnight, then once whilst coming into range of the router (it just didn't connect in that instance).

I have the same problem, Nexus 4 and 4.2.1

At home WiFi works perfectly and no issues. At work is where I get constant drops. I only manage about 1min of good connection. I end up having to turn off WiFi and then stuck on GPRS :(

Previous phone Galaxy SII running 4.0 had no issues at work and other people on other phones have no issue.

I am unsure of the router type, I'm not Admin here, but I believe it is D-Link (assumption)

Please fix...GPRS is worse than Dial Up!

Cant figure out if its router or phone, works fine on seemingly EVERY wifi network apart from my homes but my old 3GS and Samsung Galaxy I worked fine on every wifi

4.2.1 is unlikely to fix it, changes don't seem to be wifi related.

From me experience, it seems to be that in my case a reboot of the *router* 'fixes' the problem. It is possible that some (perhaps entirely reasonable and standard-compliant) change in the Android code is causing some routers to break, because of a bug with their firmware.

What is weird is that even if Sync breaks, the phone still has basic connectivity.  For example, even while Wifi and Cell network indicators are grey, I can open a local ConnectBot session and ping remote servers, ssh around, resolve DNS, etc.  The browser will timeout, though, and other apps seem to have difficulty making connections.  Sync is of course, broken.

Wifi works fine at home (WPA2, AES), but not at work (WPA/WPA2/AES).

I have this issue both at home and and work.  Home is WPA+TKIP and work is WP2+AES, so there's nothing in common in that respect.  Disabling Wifi Optimization does not seem to have helped any.  I wonder if there is a pm_fast/pm_max type setting for this wifi driver?

It seems like there may be two different problems people are reporting.  I have never had to toggle wifi off/on in order to get connected again.  When I wake my device, it connects after a few seconds and the icons turn blue again.

I can reproduce this problem easily by putting the device to sleep and sending texts via MightyText.  MightyText tries to send them to the phone, but they don't go through because the device isn't actually connected to wifi.

Hey everyone, I'm not saying this will fix things but it seems to have helped me out with my home Linksys/Cisco E4200 router.

Find your advanced wireless setttings and TURN OFF CTS Protection. Mine was set to Auto and after I turned it Off things have improved. I can't for sure it's fixed but I haven't seen grey bars for a while and overall signal strength/wifi performance on the phone has improved.

If you google it when this is on it is supposed to significantly reduce performance and it's meant to help avoid collissions but it does that by stopping clients from sending packets.

Please turn it off and test and post here what your results are. Even if this doesn't fix your issue it shouldn't hurt improving things.

I tried the suggestion listed in Comment 105 and it fired right up.  All day I have been unable to acquire any signal. Your suggestion seemed to work instantly.  In fact, since I have had the phone, I have been unable to keep wi-fi signal on any wi-fi network and have a replacement phone being sent because tech support assumed it was a wi-fi antenna issue after we did some troubleshooting today.  Worth the try.

Thanks for the CTS tip but it turns out it was already disabled on my router.  I'm not sure what else to try at this point.  I am extremely disappointed with Google's regression testing on Android 4.2 at this point.

Yep , doesnt help for open networks that you cannot administer. Google needs to just fix this.

I received a fix yesterday. Via air

If you are talking about 4.2.1 , unfortunately that ota doesnt fix this issue.

Can not change my works router settings, so please fix it Google!

same problem, after installed Android 4.2.1. Google should fix this. it was working fine with 4.2, but now it is terrible. it doesn't sync my email. so bad...fix this issue please

Turning off CTS did improve my performance while on WiFi but it still has the issue with grey bars and disconnects when sleeping. I also tried reducing beacon interval to 50ms which is supposed to help sometimes but that hasn't helped either.

The only thing I can think of is if someone has root to try replacing the 4.2 WiFi driver with the one from 4.1.2?

I think I remember my Nexus 4 coming with 4.1.2 out of the box, but I'm not sure.  Either way, I can't find a N4 4.1.2 image out there anywhere to pull the wifi driver out of.  If anyone can get their hands on it, please post it here and I'll be happy to be the guinea pig.

I thought the same thing however it turns out it didnt. It was actually labeled 4.2 and the ota after the release date was the same.

I just got the idea of pulling the wifi driver from the LG Optimus G 4.1.2 system dump.  Now I just need to find the right file(s).

Same issue with my Nexus 4 with Andriod 4.2

I compared WCNSS_qcom_wlan_nv.bin and WCNSS_qcom_cfg.ini between what was on my 4.2 N4 and a 4.1.2 LG Optimus G system dump.  Definitely a different binary as the size is different between the two, and there are also major differences in the ini file as well.  I am going to try making some changes to my N4 ini to match the settings on the OG, but I'm not sure which to try yet.

I also have wifi inconsistent connection issue on Nexus 4. Dependig on a router, it drops the connection, or i am not able to access any web-based services while the phone is associated with a router. And even though the connection is made, it does not last long. Moreover, the association time is too long.    

I'm having the same problem with my nexus 10 as well. 4.2, and seems to have trouble connecting after being asleep. Linksys e2500 router and connecting via n

Guys, ... My last comment was number 112, but i found the answer. Just reset your nexus 7 device (please backup your all apps, etc..). now my device is working, like it was. Just do the factory reset. boooom...
>>>>How to reset the nexus 7<<<<
http://support.google.com/nexus/bin/answer.py?hl=en&answer=2668187

There does appear to be two issues:

WiFi remaining connected, but not allowing syncing.
WiFi disconnecting/failing to connect with routers

I was suffering from the second problem, but (touch wood) that seems to be fine after the 4.2.1 update. Not sure if this is the same for anyone else?

not two, but THREE issues, there's also low signal strength issue: the signal is high only within few feet from the access point. 20 ft means one bar or less with video streaming cutting out and stopping completely.

To comment 121, other people have tried a full reset but that hasn't fixed the issue. It may have worked for you but it doesn't explain why it would work on some wifi and not others. A factory reset wouldn't fix this. anybody with a N4 can test a factory reset? Pretty sure it won't work

124.... I tried the factory reset several times and it was a no go. Only thing that had worked is the router setting change. Works on networks I control not on any others.

I have a DLink DIR-615 (Rev. E1), and my Nexus 4 cannot see or connect to it.  Other networks come up in the wifi network scan, but not that one.  My other devices have no problem connecting to it.

Anybody try forcing one band either 2.4 or 5ghz and not auto? Does that help?

Just to confirm. This was occurring on my Nexus 10 running 4.2 and also on my phone running a 4.1.2 mod of CM10. I changed the setting on my home router to turn off CTS and haven't seen it happen again.

Guys would changing my DLink 2780 router for a tp-link wr1043nd  make any difference between the two it looks like the tp-link comes out on top but I'm not wasting £50 on a router that does not fix the issue

Turning off CTS Protection has helped but for me not eliminated the issue completely

I have the same problem. My router is a dsl-2780. I was gonna try the CTS fix suggested in 106 above. I couldn't do it because I don't know how to do it on my router.

To describe my problem in detail. When I found out that my Wi-Fi is not working I took my phone to a local carphone warehouse. The guy from geek squad tested it on his Wi-Fi it worked. I went and tried it a friend's place it worked.

Comment 131, DUDE SAME HERE DID IT TODAY so I changed my router, its coming from amazon at 1PM tomorrow

Same problem here on my Nexus 7.  Have tried router stuff, optimizing/removing optimization on Nexus 7.  SO FRUSTRATED.  Who do we contact??

same issue i connect to campus networks ... pissed off !!

I've started getting this problem with 4.2.1 (not with 4.2) on Nexus 7.

I'm using Juice Defender.  I set "force reconnect" on WiFi in it and things are fine again.

spoke too soon.  helps but not a cure

Had the problem on a DIR-615.  Installed DD-WRT and the Nexus 4 connected without a problem. For those of you able to do this, it should fix your problem.

This issue is occurring reliably with our WPA2/EAP-PEAP secured SSIDs on Aruba Wireless gear.  I've yet to figure out what magic option is causing the Nexus 4 wireless driver to shoot itself in the head so bad it starts refusing to see other unrelated wireless networks without toggling wifi on and off.

There is no "fix" we the end-user can do.  The best we can do is maybe find a local workaround until Google fixes the driver.

This has to be a first priority!

At this point ,12 days later , i have yet to hear anything from google. quite pathetic.

This bug's thread of comments is why end users shouldn't buy Nexus devices.  People: This does appear to be a bug, yes.... however this is not a support channel or forum, this is the bug tracking system.  As you can see by looking in the upper left, the status is still "New" and not verified or assigned.

@#140: if you want response in 12 days for a bug that needs to be reproduced and fixed and patched in the OS I think you need to leave technology all together and go back to a Nokia 3210.  Your life will be much happier and stress free.

I know more about tech / software then you ever would tool.

And stop saying its not an "end user" device, this stage of the game it is , so stop kidding your self. This is not any old bug. It seriously hinders the phone from accomplishing 100% of the tasks its meant to run.

It never should have been in production to begin with. Now go away.

@#141: People paid hundreds of dollars for a top-of-the-line device and are getting pissed on. If Nexus devices weren't meant for end-users, why the fuck is Google selling and advertising them to end-users on their website? The fact that this bug is still classified as 'new' just verifies Google's poor responsiveness to major issues that affect a lot of users. Stop insulting people and, to agree with 142, go away.

Nexus 7: Connects fine to my home SSID but constantly drops signal and does not reconnect without turning wifi on the the device off and on again.

Nexus 4: Connects to home SSID but is laughably slow to the point that when I was on the phone with a Google Tech Rep he decided it was best I get a new device. However I tried wifi at a relatives house who lives 40 miles away and it worked fine??

Both devices are running the latest software

I have a DSL-2780 router. Does anybody know where I can turn off CTS protection in the settings? Thank you in advance

My Nexus 4 worked just fine, until just now. All of a sudden, bam, no wifi. Can't get it to connect to any Wifi. Tried restarting the phone, turning on and off the wifi, disconnecting and reconnecting, still nothing.

My nexus 7 still works... for now at least.  

Please address this issue fast Google, we've paid a lot of money for these devices to work, fix them!

At this point I've tried just about everything I can think of.  Multiple routers, changing router settings, 2.5 GHz only, wifi keep alive apps, multiple ROMs, wifi driver settings from Optimus G.  I don't know what else to do.  When the N4 was first announced everyone said it's fatal flaw was a lack of LTE.  I disagree.  Its fatal flaw is that it is incapable of staying connected to wifi while sleeping.  Come on Google, at least acknowledge this issue!

 Same problem, keeps droping wifi on my new Nexus 4 16gb.

It's not just android, it's the Apple product as well. My rezound has the same issue and afraid when I connect my 2 children's nexus 7 up to my router, they won't work. Google Android crashes router or I phone crashes router and you'll see what I'm talking about.

Exactly the same behaviour as #145.. Nothing change in my configuration and
it starting refusing connecting to my home network... And my n7 keeps
working.
I hope this issue will be shown to the world by the media..

I don't know if this is related to this issue:

http://code.google.com/p/android/issues/detail?id=40306

But turning off GPS has fixed my Wi-Fi speed issues so it might be worth a try.

Update to my 145 post,

After installing the 1.1 MB Android 4.2 update to my Nexus 7, it has stopped working as well. DO NOT INSTALL THAT UPDATE until Google has fixed this issue. This is extremely frustrating, as both my phone and tablet have now been rendered useless.

My nexus 4 has major problems with my dd-wrt whereas is fine with a friends stock sky router, but my nexus 7 seems to be fine with anything.

New Nexus 7 32gb would only connecto to wifi within 2 feet from routers (tried 3 different places). Useless device..sent back...3w still waiting for reimbursement....

How do i turn off CTS on DSL-2780? This is the only thing that I have not tried. I've been to friend's houses who use a different wi-fi and my nexus 4 worked fine over there. Help.

Same here.  Wifi connection issues on N4.
it connects when Wifi is in range.  When not in range does not connect back to the wireless data connection until I turn off Wifi.
Sometimes even after turning wifi off on the phone, the network data does not connect back until I reboot the phone.  Google, pls analyze and fix.

So this is one of the problems right?

For example, my Nexus 4 is connected to WiFi and has been sleeping for a couple of minutes. After I wake the device to go into my twitter app or Browser, it does not establish connection until about 10 seconds. However, the Wifi signal indicator is still showing up glowing blue indicating that it's connected to Google's servers.

Nexus 7 always worked great on home WiFi network until 4.2, and started dropping WiFi connection during streaming. However 4.2.1 made it worse and now when I wake it up after a few hours it has no connection to the Internet even though it says it has an excellent connection. The only tipoff is that the WiFi icon is grey instead of blue. I have to cycle WiFi off and on, sometimes twice, to get it to work. It seems to drop less in the middle of activity since the 4.2.1 update but it drops more during inactivity. As others indicated, the problem is not in the network, as other devices are connected (and remain so) while the Nexus 7 drops its connection. This is driving me nuts.

Tested for 3 days throughout the house - MBP 15" OSX 10.8+, MBP Air 13" OSX 10.8+, two Nexus S phones (both Android 4.1), Nexus 10 tablet (Android 4.2.1). Apple WiFi infrastructure - Airport Extreme, normal, and Express. In all cases MBPs *and* Nexus S *phones* are rock solid and did non drop connection ONCE. The Android 4.2.1 Nexus 10 does not last more than 10 minutes. It dropped a few times as I was typing this on it. It is absolutely horrible.

Tried all combinations in the settings - optimization, power, frequency - now back to defaults. Awful. Just now it dropped as I exited the settings panel.

Google, this is NONSENSE!

Come Google and android. Do something. But I have to say the phone works all the time with sky routers in the UK. For me it's mainly talk talk DSL-2780 which is not working with my phone.

I noticed something interesting... maybe google or someone here can confirm. I have a DSL-2780 modem which is a dual N-band modem (i.e., 802.11 b/g/n). Nexus 4 picks up the signal but internet connectivity is lost in less than 1min but still shows 'excellent' signal strength. So I switched to a very old modem which is 802.11 b/g & nexus 4 works fine on this one. It seems that nexus 4 drivers do not like dual band modems. I tried it on another modem in a different location which is also only b/g & it still works. So looks like a driver (or maybe hardware) problem on nexus 4. I have no problems with Nexus 7 on either modems though... only Nexus 4. I have not tried the user suggestion of turning off CTS protection on my dual n-band modem yet since i got it working on my b/g modem. Come on google fix it or atleast acknowledge the problem.

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Comment 160 - helped me too !  John - Thanks a lot

I disabled 802.1K on our Aruba enterprise gear with WPA2/EAP-PEAP SSIDs at work and both the Nexus 7 and the 4 running 4.2.1 are behaving much better today.  After disabling 802.1K I've been unable to reproduce the wifi "crash" during sleep where a quick toggle into airplane mode was required to get wireless to even see other unrelated SSIDs.  This is most likely not applicable to home environments.

I do see that even with wifi sleep policy set to "always" while it does stay connected it seems to love bouncing between channels and between 2.4GHz and 5GHz when the screen is turned back on in a campus environment with multiple APs visible.  This seems to be why the wifi indicator flashes gray and the number of bars bounces around for a second or two after turning the screen on after a long period of time.  Data history shows wifi IS being used even when the screen is off so it's more of a visual annoyance and potentially unneeded associations/reauthentications going on.

I have zero issues with my devices using the ActionTec FIOS AP/router at home.  I even enabled CTS protection just to try to verify if it was a potential issue and it made no difference one way or the other.  It worked fine with the router no matter if CTS protection was on or off.

Good luck everyone.

Same problem here.  Constant drops on N7.  VERY disappointing to spend $200 for total worthlessness.

#163 - I have the same Actiontec FiOS router but wasn't using it. I just started and am still having problems with my N4. Can you please post what your wireless settings are on your Actiontec?

Got my N10 today and it won't stay connected at all. When I first turned the Tablet on, it connected... for about 10 minutes max, then dropped out. It refuses to re connect, despite turning the tablet on and off and switching between flight mode. The wifi works fine on my android phone (gingerbread) and any other wireless device.

My Galaxy Nexus with update 4.2.1 also show wifi connected to Office network but i am unable to access internet.
While on my home network  , i easily connected to wifi and can access internet with excellent strength.
Google , Kindly fix the bug.... Please....
Doubt , is it affecting Cellular network also?

restarting my modem has appeared to fix the problem,  at least for the last few hours.  it not really a solution though.  can't expect others to reset their modem when i turn up to by a coffee.

I received my N10 this morning and have the same problems described above. Wifi connected when I first logged into the phone, then dropped for after 10 minutes of use. The one way to get the connection back was to forget the connection & re-connect which gives no more than 5 minutes of connection time before dropping again.

Many other devices using this same wifi network, including laptops, a Galaxy Nexus (4.0.4) & Motorola Xoom (4.1.2)

The N10 is completely unusable in it's current state!

Responding to my own comment #169 - had to run through 2x System Updates but now the tablet works great on wifi and hasn't dropped out since.

I can easily see how non-techies would be inclined to just return it as "broken" so Google would do itself a favour if it applied the update before shipping IMHO.

Nexus 7 on 4.2.1 having the same issue. AP is wpa2. Shows connected and programs works for a little while then everything fails. A scan using fing shows only the nexus 7. HTC One X works just fine. Pls fix. Soon.

I read somewhere that turning OFF GPS and location stops the temporary network connection and so far for me it has solved it. A patch must be coming soon...

172 - This did nothing for me. I am beginning to think this is an issue when multiple access points exist like in a residential area or building. No matter what I've tried I have issues at home but it works perfectly at work because there are tons of access points but they're all one network so phone can connect to any of them. At home I feel like it tries to connect to other networks and fails while on standby. When you wake phone it then reconnects with the proper access point. Is anyone having this issue and when you scan yours is the only network? I bet most people having this problem are in a place where multiple networks show up.

I do not have a sim card in my Nexus 4 as I only use it for development so it's connected to wifi only.  Anytime the phone goes to sleep for more than a few minutes, it drops its wifi connection and will not connect to any networks until the Wifi switch is toggled off then back on.

It does not matter where I am or what kind of network it's on.  I've tried it on wpa2, unsecured, and wpa2-enterprise wifi, with the same results.  

Very, very frustrating.  I'm an Android/iOS app developer and I bought this device with the hopes of eventually replacing my iPhone 5 with the Nexus 4 as my main phone, but that's not going to happen until the Nexus 4 isn't a pain in the ass to reliably connect to wifi.

Purchased Nexus 7 16GB from Sams Club on 15 December 2012. Out of the box it upgraded to 4.2. Worked great for the first couple of hours then noticed wifi drop out on Netgear WNDR3800 router. Same problems everyone else in this thread is having. Really disappointed in google for no response. I am taking the Nexus 7 back to Sams Club and getting an iPad. Would like to keep the nexus 7, but no official acknowledgement from Google about this issue clearly shows how they feel about their customers.

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POSSIBLE SOLUTION! - Found a similar older thread http://code.google.com/p/android/issues/detail?id=35352

One solution that worked there was to TURN OFF WMM. In most Cisco/Linksys and other routers it will be under QoS. Try this out and report back. For me it does appear to have so far fixed the issue. Many people on those other threads reported having good results with Galaxy Nexus and Nexus 7 after turning off WMM. Good luck!