My experience, Only if this happens to someone else:
1) The account has expired, so I went to Azure and changed the expiration date (CloudSvc / Remote Desktop)
2) Work with an error sent in this thread stopped.
3) In my case, the problem was that the Azure certificate for Remote Desktop expired, so you get a new one with the same CN name.
4) So, when I changed the expiration date of the account, she used the old certificate.
5) the reason why it took me a while to find out is that Combo has the same name twice to select a certificate:

6) when I switched to the second element with the same name, it started to work.
D.Firka
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