My W2k domain controller began logging event 2020 errors recently, and users are dropping network connections. The only significant change is that we installed gigabit network cards to 10 workstations on the LAN. (The office only has about 15 workstations total). At about the same time, the system reported the page file too small and the registry too small so I increased the size of the paging file and the registry.
Research showed causes all over the map for this problem.
This article suggests to me the file server is being overloaded somehow. I am going to enable tagging tonight so I can start using poolmon to try to find the culprit. This DC is running a lot of services. In addition to file and print services, DNS, DHCP and its running as terminal server as well. I have new hardware coming in so I can offload some of these services to another machine. Any advice is welcome.