If you have used the function to generate a self-signed certificate with a Wsus 3.0SP2, then the certificate has been generated by the Wsus server itself.
You can try these options :
You can try these options :
- Delete all Wsus-Selfsigned certificate in the "Wsus" store, "Trusted Root Certification Authorities" and "Trusted Publishers" store, re-generate a sefl-signed certificate.
or - In WPP use this option "Ignore Code-Signing Certificate validation errors" 'in Tools->Settings->Server Tab)