Workgroup machines (XP) not showing in wirelss network

Hi,

I am running Vista Business (SP1) via a wireless connection with up to 4
other machines (running XP) in the same workgroup. When first installed
Vista saw the other workgroup Pcs and I was able to share/copy etc.
After one week and some Windows Updates the ability to find the other
workgroup machines is gone! No changes have been made to the other machines.
Any ideas??

can you ping the XP by IP? If yes, can you ping it by name?

--
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
"Chris Tapping" <chris.g0lxb@tiscali.co.uk> wrote in message
news:uZMFwY2dJHA.6012@TK2MSFTNGP02.phx.gbl...
> Hi,
>
> I am running Vista Business (SP1) via a wireless connection with up to 4
> other machines (running XP) in the same workgroup. When first installed
> Vista saw the other workgroup Pcs and I was able to share/copy etc.
> After one week and some Windows Updates the ability to find the other
> workgroup machines is gone! No changes have been made to the other
> machines. Any ideas??