We are using Windows Server 2003 SR2. We have 10 computers on our domain. We came in this morning and all of the computers were having issues loggin in. They were really slow. All drives that are mapped to the server cannot be accessed and when disconnected, cannot be remapped. We get "there are currently no logon servers available to service the logon request" when trying to map the drives back. I was able to map some of the drives on some of the machines by using the administrator login, but the default log in "User" that we use on the machines will not map. I can ping the server ip and dns name fine. Any ideas?