WSUS Support Tip: “WARNING: Skipping scan, self-update check returned 0x800B0001” in WindowsUpdate.log

toolsignExample Scenario: You just got some new servers and patch them online against Microsoft Update before pointing them to your WSUS server for updates.

Symptom: In the WindowsUpdate.log you may see the following.

“WARNING: Skipping scan, self-update check returned 0x800B0001”

“WARNING: WU client failed Searching for update with error 0x800b0001”

In the Windowsupdate.log, you notice your client is at version 7.6.7600.256

Cause: This can be due to a version mismatch between the Windows update agent and the WSUS server. WSUS needs to be at version 3.2.7600.251 in order to properly communicate with clients at version 7.6.7600.256

Solution: Install KB2720211 to get your WSUS to the correct version for your clients.

Since there are a few known issues with the patch, be sure to read the whole article so you can gather information about what issues may apply in your situation. There is also an excellent blog post by Joao Madueria that give you some great guidelines on what to do before installing the KB, and what to do if you do encounter an issue after installing KB272011:

- Meghan Stewart

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