You are trying to upload a self signed certificate and you get an error : "Self Signed Certificate Error".
You might get this error if WSUS server is located in a different machine and the remote registry service is not running, or Patch Connect Plus server does not permission to access the WSUS server
Ensure that the "Remote Registry Service" is started on the WSUS server. You should also ensure that the WSUS server is reachable from the Patch Connect Plus server and has necessary permissions.
Set the following registry key:
In case if this problem continues, kindly Contact Support
Keywords: Third-party Patch Management, Publish 3rd party Patches, SCCM, WSUS