Network worked now doesn't

I have an XP Box connected to a router. My new Vista laptop connected right
out of the box via wireless and saw my xp box and shared files. Now a few
days later the XP Box does not show up when I browse for it. It shows up in
the 'full map' under Network and Sharing Center. I didn't change any
settings on either machine so why all the sudden am I having this problem? I
tried all the basic obvious - resetting the router, reboot etc.

Make sure the NetBIOS over TCP/IP is enabled. If yes, check any errors in the event viewer.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"mmore" <mmore@discussions.microsoft.com> wrote in message news:C3A895E5-EBA8-4FB1-A4C7-263C0020055F@microsoft.com...
I have an XP Box connected to a router. My new Vista laptop connected right
out of the box via wireless and saw my xp box and shared files. Now a few
days later the XP Box does not show up when I browse for it. It shows up in
the 'full map' under Network and Sharing Center. I didn't change any
settings on either machine so why all the sudden am I having this problem? I
tried all the basic obvious - resetting the router, reboot etc.