I can install AI version 24.1.1 without any problem. So I think we can rule out any network problems or firewall problems since I can access the Adobe server to get AI version 24.1.1.
But I cannot install version 24.1.2 or update to that version. Then I get error 125 and that makes no sence because AI version 24.1.1 does install. I even tried uninstalling AI using the Adobe cleanup tool, same result.
I am using Microsoft Windows 7 (64-bit) with Service Pack 1which complies with the minimum requirement of AI.
Now I really have no idea's left how to solve the problem not being able to update to the latest version. And yes, I do have a valid subscription.