I had this same issue with SSL. My time was in sync and certs were valid every where.
I had the SSL Certificate in the User Trusted Store and not the Computer Trusted store. The Fix: 1. I opened MMC 2. Added Certificate snap-ins for "My User accoun t" and "Computer Account". 3. Copied the SSL cert from My user to Computer Trusted Root, and restarted the client with WUSFORCE.CMD. This fixed the issue. Since I had 4300 desktops, I then I created a ZFD NAL job to run CERTMGR.EXE on all my desktops and put the cert where it needed to be in the PC Store Here's the command "certmgr.exe -add mycert.cer -s -r localMachine root -all" "wusforce.cmd" --------------------------------------------------------------------------- ---------------------------------------------------------------------------
