The computer can't verify the identity of the RD Gateway Server. It's not safe to connect to servers that can't be identified.

Hello all,

I'm attempting to setup TS Gateway in an environment.  After configuring Terminal Services, the RDC client, etc, etc.... I receive the error message stated in my subject line.

Here is the setup:

-External facing router with IP address of (not real) 10.10.10.1
-TS Gateway server named TS.SERVER.COM
-Edited the hosts file on the client to include an entry for 10.10.10.1 as TSG.SERVER.COM

I created the certificate for TS.SERVER.COM and specified it in TS Gateway Manager.

The RDC client is configured on a laptop (Windows 7):                     

'General' tab > 'Logon Setting' > 'Computer': TS.SERVER.COM
'Advanced' tab > 'Settings' > 'Use these RD Gateway server settings' > 'Server Name': TSG.SERVER.COM --- (ask for password)

Upon attempting to connect, I get the error message and have the ability to view the certificate.  It pulls the certificate information from the TS Gateway server, but when I click 'View Certificate', I see 'Windows does not have enough information to verify this certificate'.  So, just for S&G's, I exported and imported the certificate to the TS client and still got the error message.

I have never used Windows 7 as the TS client, but I am curious if there are any compatibility issues since the RDC client asks for RD Gateway information and not TS Gateway specifically.  I know they are essentially the same thing, but RD Services is a bit different than TS in Server 2008 R2. 

Can anyone provide any guidance?  Hoping I'm missing something as opposed to compatibility issues.

Thanks in advance,

MDH