I have a windows 2012 server where WSUS server info got updated via Local group policy but which is pointing to wrong WSUS server. Hence i have disabled the policy and rebooted the server.
Once the server back online, "Specify intranet Microsoft update service location" policy got enabled again and pointing back to wrong WSUS IP address.
There is no AD policy is available to overwrite the Local policy. So not sure how the policy is getting re-enabled.