Our ArcGIS Server 10.0 SP 4 website has been hanging lately where everything gets delivered except the map. When I try and check the REST Endpoints they it hangs and then fails. When I stop the IIS, that takes 2-3 minutes to stop, which is not normal. Sometimes it takes 2 or 3 stop/starts of IIS to get the server back working again. I've made sure ArcGISWebServices is in Admin group as well as all necessary server groups.
I looked in the system log for the latest crash and it reads:
@ 8:18 AM "A worker process with process id of '13516' serving application pool 'ArcGISApplicationsAppPool' has requested a recycle because the worker process reached its allowed processing time limit.
@8:30 (approx when I began investigating the issue) "A worker process '7616' serving application pool 'ArcGISApplicationsAppPool' failed to stop a listener channel for protocol 'http' in the allotted time. The data field contains the error number."
Any ideas on what I can do to further troubleshoot are appreciated.
Specs. WinServer 2008 IIS 7 AGS 10 SP4