i have a two tier application that uses two windows servers. The servers communicate with each other using their fuly qualified domain names. There is also a DNS server in the same location. The DNS server is running Windows 2003 Server. I am experiencing some difficulty with the two tier application and one of the steps i need to take during troubleshooting is verifying te DNS server is processing all requests. Is there any type of testing i can perform on a windows dns server that would show whether or not it is working correctly as well as response time? The application developers think it might be the response time that is causing the problem.