Please try to reset the windows update component on the windows server 2012 to see whether the issue will be resolved or not:
Open PowerShell ISE as an administrator and run the below scripts.
92464-reset-the-windows-update.txt
Please try to reset the windows update component on the windows server 2012 to see whether the issue will be resolved or not:
Open PowerShell ISE as an administrator and run the below scripts.
92464-reset-the-windows-update.txt