I have two servers with Windows 2000 advanced server, they control the domain of my network, I have workstations (mostly windows 2000 and NT 4.0, some 95 to run small process)and print servers, the problem is that both servers can't ping to some of this print servers (3 of 12) it shows timed out, and when I ping them from any workstation there is a respond, servers, workstations and print servers are connected to the same switch, and I use HP web admin to administer my print servers (it only works with those who respond to the ping)

Sounds like it could be a wide variety of things. Maybe DNS issue? Maybe routing issue? Maybe firewall issue? Hmm...

the funny thing, is that it was working fine (the server could ping to print servers), and one day, just like that, this stoped working, by the way, I forgot to tell you, this start working I installed a dual NIC to each server and I team them with compaq teaming software, but in the firs moment I touhgt that was the problem, so I go back and installed the previous NIC and same problem persists, the servers has static IP address (the same IP address in the new dual NIC that was in the old one, same configuration, same gateway, same dns)

This may help. Reset the switch, if you changed out NIC cards the MAC address may be saved in the switches cache (depends on the switch), resetting the switch will reset the cache, it will reconfigure the ports with new MAC addresses.

I just reset all of my network devices, (2 switches and 2 hubs) and still the same problem, I download the latest drivers for the NIC's and that doesn't work too, I trying a lot of tricks and stuff, any advice I'll appreciate, I think today I'm gonna try with an exorcist, hope that works.. :)