Source Data Window not loading

[ens]

I think we have a Cognos service start up issue that we keep re-experiencing.  It manifests in a couple of different ways.  I don't have a full time dedicated Cognos Admin, so I thought I would ask to see if anyone can point us in the right direction.  We cycle through restarting the server and restarting the Cognos service and get the following errors:

1.  Most often we get the DPR-ERR-2072 error.
2.  The metadata won't load in the source window in both Query Studio and Report Studio.  It just hangs.
3.  This last time we added prompts causing reports to hang (this has only happened once). 

Any thoughts?

[sdf]

This could be cause of number of reasons. Better check your server log to have more detail on the error.
Usual cause :

1. Inactivity timeout is set to a low value.
2. Relational metadata service is disabled in cogconfig under services.

Please check above suggestions.

Let us know.

cheers!

[ens]

Thanks for the response...  I believe we checked the timeout setting, but not sure about the other.  I will look into those.  Thanks again.