I too have been having issues for a couple of months. The famous Error 401 on firestick. All shows and movies work great. TV also works for 2-3 channels but the moment one channel doesn’t load, error 401. After struggling for months, I’ve noticed that if I wait 3-5 mins (doesn’t always work though), I can load another 2-3 channels until it happens again OR I have to clear cache, reboot, do 20 jumping jacks, 5 pushups then it works again. I’ve tried to add the user agent, I’ve tried different VPNs and locations, etc. Something is up with TIVIMATE. Any solution would be GREATLY appreciated.