Infinite refresh loop from clients

I’m getting the infinite loop. I got it after upgrading to 4.4.1. I seemed to happen after I logged off. It was happening in the web browsers, in the mac client, and the Windows client. The android app continued to work. Also, I was able to get the browsers to work after deleting all cookies. But I’m very frustrated with the Mac and PC client. Infinite loop won’t let me log on.