I have seen something like this that has to do with location on our LAN. A system that cannot log in at all in one building might be fine when I move it to another location (usually in a different building).
There might be a bad port in a switch.
Is it possible to swap this line at the switch with another that is working fine to see whether the problem goes with the port or something else?

Once the machine has been joinded to the Domain, that's it. You are probably seeing one of two things: either a bad cable or a bad ethernet port.

Is it happening on just this machine?  is this a machine that replaced an existing machine with the SAME name in the Domain?

Message Edited by jmwills on 05-18-200611:04 AM

Where is the Windows 98 computer that you removed?
When we put in a new computer, we have to use a new name.
So, if the original computer had the name FLastname then we would give the new computer the name FLastname1 (as an example). As long as the old computer was not turned on there would be no problem. However, once the old computer was turned on, a new computer with the exact name of the original would fail (balk).

Just renaming the machines is not enough.  The SID's have to be changed.

Hi Jmwills,

What exactly SID mean? Those XP computers are brand new DELL computers. When we purchased those from DELL, OS is already installed.  I haven’t done any ghost to make image from other computer so why I have to change SID? Do I still have to change SID for a new computer? Previous win98 computers are no longer utilizing in office. I have tried to connect with a different port and network cable. However, I wasn’t success so what else could be a problem. We have more than 30 computers and so far only have experienced for two users.  Please help.

We had recently ONE GX-260 where the Ethernet failed due to a bad motherboard which Dell replaced. In our case it had been working perhaps for a year before it failed. Until we called it in to Dell, we used a USB to get around it. Then, when they replaced the motherboard, we took the USB network adapter out of the equation and have been fine since. That was as recent as two or three weeks ago.

Hi there,

We have replaced from old one to xp computer that win98 computer is no longer onto netowork.

Therefore, I don't think computer name conflict.  I have tried using different port and network cable as well. Obviously, it didn’t help. This user can log on locally, without joined domain but not log on as domain. What I don’t understand is if I put this computer back to workgroup and then joined domain again, it works. (user can log on using domain) but after couple days happens same problem.. Do you have any other idea?

I still think that the location on the LAN could be a factor.
We had a building where a system like this went bad in the same fashion but when I carried it to a totally separate building (connected to a totally different switch) the same system worked fine.