An interesting thing I discovered, when macOS is fresh installed if you block ocps in hosts before connecting lan cable, software update doesn't work. It need ocps entries commentend out for a second the first time you launch softwareupdate. Then you can uncomment entries and SU works.The date change was not needed for me. I think it’s not doing much at all. I did fresh install and blocked ocsp then migration assistant to pull the information from the broken drive.