“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

Got this error when contacting an external email provider in Sweden called Loopia on a Windows Server 2012 R2 Datacenter x64.

The server had not been rebooted for almost a year. After rebooting everything worked.

An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full 194.9.94.72:993

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.Sockets.SocketException: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full 194.9.94.72:993