Just wanted to preface this by saying I've never felt so frustrated or inadequate as a computer professional as when it comes to networking issues.
Yesterday, I got a router to replace my switch, and for a few shining hours, I actually had a bonafide home network, complete with file and print sharing.
Until I decided to upgrade our new PC from XP Home to XP Pro.
Some years ago, I had purchased a copy of Win XP Pro to upgrade an old PC, which we're now selling. This copy of Pro is one of the early versions, I bought it when it first came out.
Well, I guess my version of XP Home had newer system files or something, because when I first got it installed, several things stopped working, including the mouse and printer.
I got most everything fixed by deleting devices and letting the OS re-discover them. I even did this with the network adapter, even though my internet connection is working fine.
Anyway, I've checked all the standard stuff I can think of - worgroup name is same on both systems, I've disabled the Windows based firewall, checked TCP/IP settings.
From my other PC, I can see both PCs on the workgroup, but I cannot connect to the problem PC, nor can the problem PC see the workgroup or any shared files.
Can somebody please help me before I go bezerk?