Some time back I set up a 2008 terminal services solution with web access enabled. I have used SSL certificates for both the gateway and the terminal service applications and it all works fine when using Windows XP as the client.
Windows 7 however refuses to work full stop, complaining that 'A revocation check could not be performed for the certificate'. None of the certificates in use are self signed. I have done a bit of reading on the matter and from what I can gather Server 2008 TS requires OCSP to check that the certificate is valid. I recently learned the certificate in use didn't support OCSP and so I have just in the last 24 hours applied a new certificate that does (validated using certutil) thinking the problem would be resolved, sadly not.
The error returned is seen either internally or externally, and I have checked that the firewalls are allowing the traffic through (again using certutil). Really at a loss now, hopefully someone can help! Finally the same error occurs if I attempt to RDP directly to the server.