When attempting to use Excel Web Access web part, I get "We're sorry. We ran into a problem completing your request. Please try that again in a few minutes."
Checked event log and found
There was an error in communicating with Excel Calculation Services http://my server:32843/49082a5d56c141629497dd8b28375f47/ExcelService*.asmx exception: The remote server returned an error: (503) Server Unavailable.
[Session:
User: ].
I googled the error and, as suggested by various sources, rebooted the server. (Same issue occurs) I also tried disabling asp.net impersonation with no change. Ideas?