I have Plesk 11 on windows server 2008 R2.
i see that Plesk control panel and all php+mysql websites stopped working after some time of restarting server , then i got this message :
An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full.
i tried many solutions , including the one below :
but the problem does not solved untill now , can any one help ?