WSUS “Self-Update is not working” Fix

If you are receiving the Windows Event-ID 13042 “Self-Update is not working” errors in your application logs and your clients aren’t receiving their WSUS updates here is the fix.

The problem is more than likely due to the Default Web Site on your WSUS server either being disabled or its port has been changed. Although WSUS creates its own IIS site, it also creates a directory in the Default Web Site called /SelfUpdate. This directory updates clients to use the newest version of WSUS and you guessed it – it requires port 80.

If you have another site running on your WSUS server that needs to use port 80, you will need to move the virtual directory to that site otherwise you will have to change the non-standard site to a different port and start the Default site.

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