Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.
After moving e-mail(MDaemon) from an aging Windows NT 4.0 to a new Dell Windows 2003 Server performance degraded significantly for users accessing e-mail from remote subnets. I used network monitor to view the performance of the NIC while the problem was occurring and the usage was never more than 9%. Remote users would even get disconnected and where unable to ping the server. Users on the LAN were unaffected. As soon as I moved e-mail services back over to the NT Server everything was fine. What would cause this?