Can’t log on after changing hubs

We are setting up a new NT server. It was working fine until we moved the server to a different hub (Server was up when we changed hubs). Now we cannot log on or see the server on the network.

We ran through the setup again with a different NICand could log in fine, but again, once we moved to a different hub, we could not log on.

Any ideas on how to fix the problem? Is the problem caused by changing hubs with the server up?

Thanks for your help.