What steps will reproduce the problem?
1. All working fine --> data is retrieved from deivce, then...
2. The netowrk is disconnected (Unplug the network cable...)
3. A read attempt to the device fails --> As expected
4. The network is reconnected
5. A read attempt throughs the following exception:  
   InvalidOperationException - The operation is not allowed on non-
connected sockets.

Running Windows XP, VS2008, NModbus_net-3[1].5_1.11.0.0.

I am using ModbusIpMaster to connect and retrieve data from an modbus 
(TCP) enabled device.
This works fine, until the a network clitch ouccurs (Net work cable is 
unplugged).
The next call after the netork has been re-established throughs the 
following exception:
InvalidOperationException - The operation is not allowed on non-connected 
sockets.

Although I can catch the exception I cannot get "reconnected".

Any ideas on how to re-establish the connection?

Ocle