Remote Desktop Services Certificate Mismatch

Posted on 2015-01-05
Last Modified: 2015-01-11
I am setting up a remote desktop services farm, and I'm getting a certificate mismatch when connecting to the session host. The notification says that the requested computer has a local domain, but the certificate on the remote computer is a .com domain. Does anyone know what I'm missing to make this work? It would seem that I have to change the FQDN of each TS to, but I don't know how to do that. Any help is greatly appreciated.
Question by:Brad212
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Author Comment

ID: 40531888
Screenshot of the certificate mismatch notification

Author Comment

ID: 40531890
These are the details of my deployment: My farm has 4 servers all running Windows Server 2012 R2. One server, let's call it TS-Services, holds 3 roles - RD Web Access, RD Gateway, and RD Connection Broker. The other 3 servers are session hosts. Let's call them TS1, TS2, and TS3. All 4 servers use the same wildcard certificate - *, and my RD Gateway external FQDN is set to I believe I had to change the published RDS name of the Connection Broker (TS-Services) from the local FQDN to However, I can't seem do that on the TSs because they are not connection brokers. My clients are connecting from Windows 7 PCs.

Author Comment

ID: 40531931
This is the notification that appears when trying to connect externally over the internet.
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LVL 12

Assisted Solution

by:David Paris Vicente
David Paris Vicente earned 100 total points
ID: 40531941

You can find here in EE an answer to a similar problem.

If you continue to struggle with the problem let us know.

Hope it helps.


Author Comment

ID: 40532399
Update: My second screenshot is unrelated. I had neglected to setup a computer group in Remote Desktop Gateway Manager. Once that was I done, I was able to connect to the session hosts.
LVL 12

Expert Comment

by:David Paris Vicente
ID: 40533034

But the certification problem persists?
Did you check the EE link?

Accepted Solution

Brad212 earned 0 total points
ID: 40533817
Thanks for you comment. While the post you referenced is similar, I found a different solution. The other post recommends a SAN certificate, but because I had already purchased a wildcard cert - as most of the documentation I found online suggested, I was reluctant to change the cert. After some digging I found that RDP 8.0 (included with Windows 8) somehow works around the problem and doesn't present the certificate mismatch notification. My solution will be to update my Windows 7 clients to RDP 8.1 which is the latest version. Hopefully this will help someone else save some time and effort.
LVL 12

Expert Comment

by:David Paris Vicente
ID: 40533900
Great, keep the good work.


Author Closing Comment

ID: 40542922
I believe that using RDP 8.0 in conjunction with a Windows Server 2012 R2 RDS farm configured with 3rd party and self-signed certificates is the more modern approach than using SAN certificates. Some SSL cert providers have discontinued SAN certs.

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