Invalid Remote Desktop Gateway Certificate

Question

Hi,

We get an error message "Your computer can’t connect to the remote computer because the Remote Desktop Gateway server’s certificate has expired or has been revoked. Contact your network administrator for assistance". However, when we check the SSL Certificate via https://www.digicert.com/help/, it says that the SSL Certificate is valid.

We are only using SSLv3 & TLSv1.0. Would it be a problem ?

Thanks

Answer 1

Hi,

What version of Windows Server is your RD Gateway running?

If your RD Gateway server doesn't have compatible cipher(s) with the client PC and/or is only capable of a TLS version that is blocked on the client PC then you will receive the error message you are seeing. If this is the case the fix is to update your RD Gateway server.

Are you able to open a secure connection to your RD Gateway server using a web browser? For example, if your RD Gateway FQDN is rdg.yourdomain.com then you would enter https://rdg.yourdomain.com in your browser. Typically you would see the default IIS page. If it fails, it will likely give you error message details that are more helpful than what the Remote Desktop Client displays.

-TP

Answer 2

Something here could help.
https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-22h2#connections-may-fail-when-using-remote-desktop-connection-brokers

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Answer 3

Check the known issues for the version here.
https://learn.microsoft.com/en-us/windows/release-health/

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