Ping times out

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Guest

I have a local network running inside home, 5 clients, 3 servers, mix of
wired and wireless. Win2K3 with a Netgear router and linksys switches.

I have 2 laptops that travel outside the house and connect to other wired
and wireless networks. All clients use DCHP and until fairly recently have
worked flawlessly for years.

Recently one laptop (my primary laptop :( ) now fails to connect when
connected to the network at home. It works fine elsewhere, on both wired and
wireless networks (mainly using 192.168.x.x), but when connected at home,
although it successfully connects to the DHCP server and is assigned a valid
address lease, I cannot ping the local gateway - it times out each time. I
can ping the loopback and assigned IP address. If I try to /renew the lease,
it fails, but disabling and re-enabling the adaptor causes it to successfully
register with DHCP again.

As I have multiple clients and wired ports, I've swapped over cables, and
seen that each port works fine, connected it directly to the router to rule
out intermediate switches, cleared the arp cache, and reset TCP/IP on the
laptop. I've also assigned a static IP in the correct address space - same
results.

I've also disabled Windows Firewall and turned off Norton Anti-virus
Auto-protest (temporarily).

I'm using the 10.x.x.x address space internally; all other clients work
fine. This system is running XP Pro SP2, as is my other (almost identical)
laptop, which has no issue. All addresses are DHCP assigned.

I'm at my wit's end with this - any suggestions ?

Thanks.

John.
 
Since this machine runs fine with other network, try to reset the router. Please post back with the result.

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
I have a local network running inside home, 5 clients, 3 servers, mix of
wired and wireless. Win2K3 with a Netgear router and linksys switches.

I have 2 laptops that travel outside the house and connect to other wired
and wireless networks. All clients use DCHP and until fairly recently have
worked flawlessly for years.

Recently one laptop (my primary laptop :( ) now fails to connect when
connected to the network at home. It works fine elsewhere, on both wired and
wireless networks (mainly using 192.168.x.x), but when connected at home,
although it successfully connects to the DHCP server and is assigned a valid
address lease, I cannot ping the local gateway - it times out each time. I
can ping the loopback and assigned IP address. If I try to /renew the lease,
it fails, but disabling and re-enabling the adaptor causes it to successfully
register with DHCP again.

As I have multiple clients and wired ports, I've swapped over cables, and
seen that each port works fine, connected it directly to the router to rule
out intermediate switches, cleared the arp cache, and reset TCP/IP on the
laptop. I've also assigned a static IP in the correct address space - same
results.

I've also disabled Windows Firewall and turned off Norton Anti-virus
Auto-protest (temporarily).

I'm using the 10.x.x.x address space internally; all other clients work
fine. This system is running XP Pro SP2, as is my other (almost identical)
laptop, which has no issue. All addresses are DHCP assigned.

I'm at my wit's end with this - any suggestions ?

Thanks.

John.
 
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