CS5.1 Windows 7 Deactivation issue: Unable to Deactivate from Computer

I see there are a few threads similar to this, so I have the same problem.

I am unable to deactivate PS CS5.1 from the old PC. I keep getting a "connect to the internet" error message.

I just spent over 50 minutes on the phone with someone from Adobe and a remote session. I saw her attempt to deactivate it and turn off the firewalls, still no luck. Obviously the internet is working, if there was a remote session.

There have been 2 installations, but I am no longer able to access 1 of the 2 prior computers. It's dead.

I was able to download my purchased copy of CS5.1, and it installed fine on my W11 desktop, and it worked- for a short time. It no longer goes past the register window.

Obviously, the Adobe system is working on the new installation end, but I am unable to deactivate. Intended issue?

Apparently, the deactivation has to be done from the local device.

Anyone have any insight to this? Other than they want me to subscribe?

Thanks