This article discusses how to clear out any prioritization flags for all endpoints in the CB Protection Server's environment. This can be helpful if unable to disable each item by hand, or can be used if the upgrade requests have stalled.
Environment
App Control Server: All Supported Versions
Resolution
Take a full backup of the DAS database. As this requires running a script against the database, having a good backup is highly recommended
Navigate in the console to Administration > System Configuration > Advanced Options
Disable the Automatic Upgrades
Temporarily stop the App Control Server and Reporter services
Download the attached "remove_prioritization_upgrade.sql" script
Start the App Control Server and Reporter services
Additional Information
The script will remove the prioritization of upgrades, then expire the host (force it to disconnect then reconnect).