We had a standalone Dell machine, which wasn't on the company network. Last week we needed a spare machine on the network so we hooked it up. Everything is kosher, the IP address, workgroup, network ID...everything.
Now, when it was a standalone machine it operated without any problems but now its on the network it freezes randomly necessitating a reboot. Sometimes you can use it for a couple hours before it gives out, sometimes five minutes. The frezzes don't even show up as errors on event viewer.
Saying that, when I sometimes try and browse the network by clicking My Network PLaces, I get something odd. When I double click on My Network Places, the desktop icons go awol and then reappear after a couple seconds, the same as when you click refresh.
Can anyone help? I'm pretty stumped and have tried everything from defrag, disk cleanup, windows repair, scandisk etc.