Can't see networked PCs

I have a vista PC and a XP PC networked via a Linksys wireless router,
sharing a broadband internet connection. For 3 weeks I was able to see the
XP from the Vista and share/use files, but not the other way. Internet
connection on the XP (the wireless pc) was excellent. Now I can't see in
either direction, but Internet connections are still excellent on both
computers. What is going on here? I'm pulling out my hair! I'm relatively
savy, but certainly no whiz...who can help?

If turn off the firewall, can you ping each other?

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
"PLink49" <PLink49@discussions.microsoft.com> wrote in message news:45B98591-A222-485B-9166-0037EE8DEB6E@microsoft.com...
I have a vista PC and a XP PC networked via a Linksys wireless router,
sharing a broadband internet connection. For 3 weeks I was able to see the
XP from the Vista and share/use files, but not the other way. Internet
connection on the XP (the wireless pc) was excellent. Now I can't see in
either direction, but Internet connections are still excellent on both
computers. What is going on here? I'm pulling out my hair! I'm relatively
savy, but certainly no whiz...who can help?

Even with the firewall on, ping is successful both directions

"Robert L [MVP - Networking]" wrote:

> If turn off the firewall, can you ping each other?
>
> 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
> "PLink49" <PLink49@discussions.microsoft.com> wrote in message news:45B98591-A222-485B-9166-0037EE8DEB6E@microsoft.com...
> I have a vista PC and a XP PC networked via a Linksys wireless router,
> sharing a broadband internet connection. For 3 weeks I was able to see the
> XP from the Vista and share/use files, but not the other way. Internet
> connection on the XP (the wireless pc) was excellent. Now I can't see in
> either direction, but Internet connections are still excellent on both
> computers. What is going on here? I'm pulling out my hair! I'm relatively
> savy, but certainly no whiz...who can help?

What's the system error, if using net use \\remotepcipaddress command?

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
"PLink49" <PLink49@discussions.microsoft.com> wrote in message news:BD05FBBC-1B6F-44E1-ADB2-836DD713F54C@microsoft.com...
Even with the firewall on, ping is successful both directions

"Robert L [MVP - Networking]" wrote:

> If turn off the firewall, can you ping each other?
>
> 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
> "PLink49" <PLink49@discussions.microsoft.com> wrote in message news:45B98591-A222-485B-9166-0037EE8DEB6E@microsoft.com...
> I have a vista PC and a XP PC networked via a Linksys wireless router,
> sharing a broadband internet connection. For 3 weeks I was able to see the
> XP from the Vista and share/use files, but not the other way. Internet
> connection on the XP (the wireless pc) was excellent. Now I can't see in
> either direction, but Internet connections are still excellent on both
> computers. What is going on here? I'm pulling out my hair! I'm relatively
> savy, but certainly no whiz...who can help?

Where do I use that command? It doesn't work at the command prompt

"Robert L [MVP - Networking]" wrote:

> What's the system error, if using net use \\remotepcipaddress command?
>
> 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
> "PLink49" <PLink49@discussions.microsoft.com> wrote in message news:BD05FBBC-1B6F-44E1-ADB2-836DD713F54C@microsoft.com...
> Even with the firewall on, ping is successful both directions
>
> "Robert L [MVP - Networking]" wrote:
>