Background
The Microsoft Office Project Server Queue Service handles all processing requests for Project Server. In some installation scenarios, it has proven beneficial and therapeutic to stop and restart the queue service once each day.
Resolution
Create a windows batch file (.bat) with the following command lines:
@echo STOP the P12 Queue
net stop "Microsoft Office Project Server Queue Service"
@echo START the P12 Queue
net start "Microsoft Office Project Server Queue Service
From Control Panel > Scheduled Tasks, create a windows schedule task to run the batch file on a nightly basis. Set the runtime to occur when other scheduled jobs, such as AD sync, and the Cube Build Service are not running. Make sure the job is set to run under security credentials of a user in the local admin
security group.