I'm assuming that this is a workgroup. Try the suggestions from the following Slow Network Browsing or Inability to Connect ... message.
Trying to unweave, unwind, unravel
And piece together the past and the future,
T. S. Eliot
We have a NT workstation connected to 100mb hub. If we access it with NT, win2k or win98, no problem. But with XP pc running at 700 mhz (sp1) we get 90% of the time the hourglass, but not on a pc with XP running 2.6 Ghz. With the fast pc if i ctr-c a file of 150k, it can take up to 30 sec before the explorer is controlable again. It take more than a minute to copy it to the local harddisk. Who can help ?