I manage a small law office with one SBS 2003 server and 5 Windows XP workstations. We have a switch and a modem from our ISP that is a Gigaset 4300. About 2 years ago there was a server crash which somehow damaged Microsoft Exchange. Outside tech help was unable to fix it so we now use POP3 for our emails and don't go through the server. All was working fine until last week when I had to reformat one of the workstations and reinstall Windows XP. I got that workstation connected back to the server, but somehow it affected one of the other workstations which is now experiencing long lag times in opening shared files. It often gets the trying to connect to server animation. The internet works fine. This is the only workstation affected and the reformatted one works fine.
The connections on all are set to obtain IPs automatically and obtain DNS automatically. When I look to see what they are actually using for DNS it is 192.168.254.254 which is the Gigaset 430. If I change it to the server IP 192.168.254.50, the workstation can't get email.
This morning the workstation first try would not log on, then 15 seconds later on second try, logged on fine. I can ping the server by name, by isp and I can ping the modem. The server can ping the workstation by IP and by name.
I am not an IT person, but have some experience with networking because before this I ran a 2 lab network in a school. I think some kind of conflict is happening with the workstation, but I don't know how to trace it down. Any help is appreciated.
We also run Symantic Anti-Virus Corp. Edition, but I turned it off temp. to see if that would help. It didn't.