losing connection with server
I have a little network of approximately 10 computers who almost all have windows xp professional. It's a domain with 3 servers (Windows NT, Windows 2000 server and windows 2003 server).
We have now since a month problems with the network. During short moments we lose the connection with the database in our contact manager software, we can't access the internet,...
How can i test where the problem could be in my network.
Are there some programs that can troubleshoot the problem?