So my RDS gateway and hosts were working fine until I replaced the 2008 R2 host servers with newer 2008 R2 sp1. Now all my Windows 7 clients get:
A revocation check could not be performed for the certificate.
The certificate or associated chain is invalid (Code: 0x10000).
The Thawte certificate chain resolves on the gateway server and the RDS host servers, but not for internal or external Windows 7 clients. XP is fine. Something like this happened before with KB 2203302. http://support.microsoft.com/kb/2203302
The only noticeable difference in the RDS host servers is that connection type went from RDP 6.1 to 7.1.
If I add the Thawte SSL CA certificates to the Intermediate Certificate Authorities on the clients then it works fine. I know I could do this internally, but it's the external clients that are my real concern.
Is this a bug or what is it that I need to do? Any help is appreciated.