We have a client uses X3 web services for various integrations.  It seems that one or more of the web service calls are failing, and the error sometimes stops the web service pools, and stops all further traffic from coming in.  We are trying to determine exactly what is causing the error, but haven't figured it out yet.  Has anybody has similar issues?  It causes a big problem when the web service pools constantly stop running or get hung up.  It seems the only way to resolve it is to restart the web service pools, which isn't practical.  Does anybody have any suggestions as to how to determine what failure is causing this?  I have looked at the mongodb logs.  There are errors there that are being returned in the web service calls, but I'm not sure if all of these are causing the actual fatal failure.  

This is on V11 Patch 11