“An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full”

Question

I\'ve written an IP multicasting application in C#. It compiles fine, but at runtime this line:

sock.SetSocketOption(SocketOptionLevel.IP,
                          


        

Answer 1

It could be port exhaustion. When application(s) makes too many outgoing connections in short time frame or does not dispose outgoing connections properly - you run out of ports.

Here is the link to rather lengthy explanation and a way to diagnose the issue