What steps will reproduce the problem? 1. Connect the multicast group by using service application. 2. Pull up the Network Cable to disconnect the LAN. 3. Then Plug in the Network Cable to connect the LAN.

What is the expected output? What do you see instead? We can also send the PGM message to LAN succeed. However, There is some socket exceptions.Please see the detail information below.Thanks!

What version of the product are you using? On what operating system? The version is the latest one, and the Operation system is Windows Server 2003.

Please provide any additional information below. System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)

Now,I only re-connect the EndPoint once this exception is happened. Does it has another better solution to solve it? Thank you in advance!