ISA Server name: PROXY The Web Proxy service failed to create a network socket because there are no available ports on this computer. ISA server already reset the maximal port number to 65535. Make sure this is the value at HKLM\System\CurrentControlSet\Service\TcpIp\Parameters\MaxUsePort and restart the computer to apply this change I have checked the registry settings and it appears to be correct. The failure occurs after about 7 days of operation. The problem impacts internal intranet web sites only. In addition, the problem occurred after restoring the ISA2000 server from a system state backup. I was anticipating that the W2k3 SP1 would have resolved the problem. The reason the server was restored was to resolve a problem with the SMTP filter/message screener OT W2k3 SP1 kills of CITRIX FR3 servers (11 fatal bugs with SP1) Any suggestions welcome for resolving the ISA2000 port failure. I am not keen to reschedule a restart of the services each day Darryl Janetzki