I'm trying to deactivate a license and reactivate on another computer but I get a 'Deactivation failed' message. Also can't deactivate offline or reset license.

I need to use another computer for Trados Studio 2017 but keep getting the message ' 'Deactivation failed. Could not revoke this license. - Could not connect to the activation server. Check the activation server. Check the activation server address in the provider setting. - The request was aborted: Could not create SSL/TLS secure channel.' whenever I try to deactivate it. I also can't deactivate offline or reset the license - it keeps saying an error has occurred. Thanks.

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