Software cannot connect to activation server, and my account shows as activated and only offers deactivation. How can I get activation certificate or connect to the server?

I cannot use Trados 2017 because it keeps asking me to activate but when I enter my licence key, it cannot connect to the activation server. My internet connection test is fine.

I tried offline activation but it wants an activation certificate, which I cannot get because when I log in to my account on the webpage, it shows as activated and only offers deactivation.

Has anybody had this problem and found a solution please?

SDL Trados Studio 2017 Freelance on Windows 11

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