There are 4 computers in my office, including 1 ordinary PC, 1 laptops and 2 MacBookpros, all of which are installed with the latest version of win 10 64 bit. With Acrobat 2021 installed, the other 3 Pcs can sign in, but only one MACBookPro can't. The software installed on several computers is not exactly the same. I want to know why this one doesn't work, how to test which software conflicts, and what the Photoshop calls to sign in?
By process monitor , this problem is solved . Only delete HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\useragent or Proxysettingsperuser 's value just like MSIE 9.0 . OMG It took me almost a week.