@aquacomputer: I believe this is important enough that aquacomputer have a 2nd/mirror server the download software can go to if the primary server is fail.
Then any solution to my problem? I have my PC's time set correctly for my timezone and I'm still getting that error. I don't need any new features I just want an old version that would work for basic fan controlling and for some reason I'm forced to use this new launcher thing?
Any downloads for previous versions would be nice too.
I think this is a issue with your system. The software is verifing the HTTPS connection and when check the feedback from the download server.
Try it from a other computer with the same internet connection.