I have gone over the instructions for HTTP over RDP several times, and it seems to be configured properly, but when I try to connect externally I get the login prompt, but it won’t accept the password, which I’m positive is correct. It is a single server setup. What could be going wrong here? Is it a DNS problem, or a problem with IAS configuration or is there something that needs to be setup on the user account? I can access secure OWA without a certificate problem. I used a GoDaddy cert. Any ideas would be greatly appreciated.