the serial number and the code signing is the same on all PCs.
For now rule out a problem with GPO because I have the same error on the server wsus (on himself) and also on the test pc in workgroup where I manually applied to the certificates and the key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ Windows \ WindowsUpdate \ AcceptTrustedPublisherCerts = 1
help do not know what to do!
Yet until August I'm sure that worked very well.
For now rule out a problem with GPO because I have the same error on the server wsus (on himself) and also on the test pc in workgroup where I manually applied to the certificates and the key:
HKEY_LOCAL_MACHINE \ SOFTWARE \ Policies \ Microsoft \ Windows \ WindowsUpdate \ AcceptTrustedPublisherCerts = 1
help do not know what to do!
Yet until August I'm sure that worked very well.