HI I am trying to configure OCSP on Win 2008 and have done exactly as described in the documents published by Microsoft on OCSP. On completetion of installation, I do not see any errors in event viewer and the status of online responder is also fine. I am trying to use the service via Cisco 870 routers to check certificates for VPN clients. The URL defined in AIA whilst configuring OCSP is used but generates an error when used either via router or browser. I am not sure what to do next, if any one can guide me with it, will b gr8 Thankyou

Hello, What error is generated on the router and browser? You may refer to the Troubleshooting the Online Responder in the following technical article: http://technet2.microsoft.com/windowsserver2008/en/library/045d2a97-1bff-43bd-8dea-f2df7e270e1f1033.mspx