Photoshop suddenly not working on Win 7 Desk

I have a 2020 version of Photoshop and Bridge that I have been running on a Windows 7 desktop for 2 years with basically no problems.  As of yesterday I cannot open a file from Camera Raw from Bridge or Photoshop, and cannot even open the Cloud App. When I try and open a file from Bridge I get the message that my Subscription has ended, (it is current!), and when I try to open the Cloud App I get the message "Cannot connect to Adobe Servers" and to check my internet connectivity, or my Firewall (which is fine, not changed!!!). I have had, and do have, the required TLS 1.2 protocol, and nothing else has chnged on my Desktop since I used photoshop last week. I took the trouble to reimage my computer from a week old B/U, to no avail., and even shut my Bitdefender Anti Virus thinking it could be intefering.   I'm stumped as to why I suddenly cannot connect to the Adbe servers to verify my subscription and use Photoshop.