Forum Discussion

Bratcat21's avatar
Bratcat21
Copper Contributor
Dec 30, 2025

WSUS changing Update Source on its own

We have 2 WSUS Servers and ConfigMgr. A week ago, one of the WSUS servers began changing the Update Source on its own, no changes had been made. 

It began pointing to the ConfigMgr and when changed back to use MS Update, shortly after checking again it reverted back to use ConfigMgr. Checked all Events, checked the SQL SUSDB for the WSUS server however there was no information related to this action. Any ideas where I can look next ? Thank you 

management
windows server

1 Reply

  • Jamony's avatar
    Jamony
    MCT
    Sep 17, 2026

    If this WSUS server is also a Configuration Manager Software Update Point, this behavior is expected.

     

    ConfigMgr's WSUS Configuration Manager (WCM) periodically enforces the WSUS configuration defined for the Software Update Point. Microsoft documents that WCM connects to WSUS roughly every hour and reapplies the SUP configuration, including the update source.

     

    So changing it manually in the WSUS console can simply be overwritten again.

     

    Check WCM.log, WSUSCtrl.log and WsyncMgr.log, and configure the desired upstream source in the Configuration Manager Software Update Point properties rather than directly in WSUS.