It could ne 3rd party security software issue. This search result may help.
XP SP3 IssuesWe have received some reports that some security software may
not work after install XP SP3. You may want to check there is a new update
for the software ...
www.chicagotech.net/Windows/xpsp3.htm
--
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
"Guido" <Guido@discussions.microsoft.com> wrote in message
news:C780C20A-3656-4B89-9307-A12110ED4726@microsoft.com...
> We have 2 computers in a peer-to-peer network.
>
> Computer 1 - Windows XP Pro
> Computer 2 - Windows XP Home
>
> Following upgrade to Service Pack 3, we are unable to Browse the Network.
>
> It takes a long time to disply the workgroup name.
>
> We get the following message:
>
> "Worgroup is not accessible. You might not have permission to use this
> network resource. Contact the network administrator of this server to find
> out if you have access permissions. The network path was not found".
>
> This happens from both computers.
>
> Your help is appreciated.
>
> Regards,
>
> Guido
>
>
>
>