21 February 2018

WSUS Fails to Connect

Recently I had a WSUS server which had to be rebooted.  Upon restarting the server, I noticed that I could no longer get into the WSUS console.  When trying to connect I was receiving the following error message:

Checking the Event Logs, I found two events which showed the following:

My next step was to check the health of WSUS with the following command:

WsusUtil.exe checkhealth
This was run from "C:\Program Files\Update Services\Tools" directory

Running this command gave me the following result:

Upon looking into this further, I noticed that there was a Windows Update which has caused some issues in the past for some people.  The update is KB3159706.  I checked my server and I did not  have this update installed, but thought I would humour it and try the fix anyway.  The fix mentioned in the KB article actually resolved the issue.  I did the following to get it back up and running:

1. Install the HTTP Activation role under .NET Framework 4.5 Features through Server Manager.

2. Restart the WSUS service

Yep...it was that easy!  After doing that, adding the WSUS server back into the MMC console worked fine and everything was back up and running again.

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