IIS – Intermittant Connectivity Problems

Have a group of websites hosted on a Win2k server machine running IIS 5.0. Recently i have noticed some sporadic problems in accessing the sites externally.

The particular site will list as ‘running’ in the IIS gui, but it is not accessible. I am not finding any errors in the event viewer or IIS. It has degraded to a point where only 5 of the 6 sites served are accessible.

There have been no IP, routing or DNS changes. I doublechecked with our DNS provider and Domain registrars, and their information is correct.

Where should i be looking in IIS to troubleshoot this? I have tried multiple reboots, and restarting the web services.

Your help would be appreciated.