Currently in our environment we have an RDP Gateway server with 2 Terminal Servers in a Farm. We also run an enterprise CA based on Windows Server 2008r2. These are all running server 2008 r2. The problem that I am having is this: For domain client computers when connecting to the gateway from an external source we connect without issue for a few days. After approximately 3 days of not being connected to the domain these computers will fail connecting to the RDP Gateway with a CRL revocation error. The specific error is a revocation list could not be obtained. This only started occuring after we installed a new Firewall. However I have with support from the company attempted to trace how the revocation check is occuring and we have been unable to find out further information. My question is when and how is this revocation check is occuring. This may help us to track the issue further. We are able to work around the problem but it involves reducing security so we would ideally like to resolve the problem. Any help you can give would be great. Thanks Warwick

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