Changing the Windows Update Server – No more Updates

Today I faced some strange issue. A few weeks ago, we installed a new WSUS Server as replacement for an old one (Windows 2003, 32bit).

All Group Policies were changed in order to point to the new Server, GPOs were updated on all systems, but the following occurred:


So what happened?

Microsoft has released an Update for WSUS 3.0 SP2: KB2720211

The update strengthens the communication channels of the Windows Update Server. The previous Windows Update Server had the update already installed and clients were updated by the server as well.

On the new server, the update was not applied. Therefore the Clients were unable to communicate with WSUS.

After installing the update, everything was working fine again.


I'm a Systems Engineer working for an IT-Service Provider in Frankfurt am Main, Germany. I am specialized in Virtualization, High Availability, Storage- and Server Administration. In my free time, I like spend time with my lovely wife, to do sports like jogging and biking. I enjoy movies and a good bottle of fermented grape juice.

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Posted in Server, Windows Server 2008 R2, WSUS

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