HBSS configuration. The past few days our schedule pull has failed with the above error. I found a thread here on the communities to verify that that was the correct error by doing a mastery repository pull to see if a different error populates. It was the same. I'm physically able to go to the repository site, select the catalogs and download the files. My keystore is still populated as well. Verified nothing has changed from my Source Site settings under ePO. Any input would be great.
Have you tried rebuilding the Master Repository (catalog.z)?
I have not. I saw that article you linked and it seemed like it was more so a fix action for a catalog.z error rather than a certificate one. Was going to outsource any other troubleshooting steps before going that route.