I've got a home network with a Dell 8200, 2350 and D620, with XP Pro, Home, Pro respectively. They were all able to exchange files until I replaced my wire router with a wireless router (that was a node, now it's the main router).
Now the D620 "sees" the 8200 in its MS Network list, but can't access it (and gives the "is not accessible, you may not have permission / the network path was not found" error). The 8200 doesn't "see" the D620 in its MS Network list. But they both see the 2350 and can exchange files with it.
The only significant change that I know I made is that the main router used to be 192.168.1.1 and the wireless router 192.168.1.2, and I changed the wireless router to 192.168.1.1 (and removed the other one). All computers access the internet OK through the wireless router.
I need a list of things to try and look at to fix this. The 8200 has Norton Internet Security, as does the D620. Again, they were exchanging files fine until I changed the router.
Any suggestions on this would be appreciated.