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.