Getting an error 'Symantec Management Server Error' page when trying to view inventory from the Resource Manager screen. It usually goes away after trying a couple more times.
Generic 'Symantec Management Server Error'
ITMS 7.x, 8.x
Increase the default timeout for 'ResourceListReportGetCountDbCommandTimeout' in coresettings.config. By default it's value is 10 seconds:
<customSetting key="ResourceListReportGetCountDbCommandTimeout" type="local" value="10" />
Try to increase slightly the timeout (let's say to 20 sec) until the page loads properly.