Cannot ping to or from XP

[austineckert]

I do not, and have not used Cisco VPN on this XP machine. The XP box cannot access the internet, but it used to work. I did not knowingly install anything that would affect the network.

Network: two XP and one Linux box with wired ethernet, three wireless XP/Vista on 802.11 b/g. All can properly access the internet with all computers except one XP wireless.

Netgear 8 port gigabit switch, AT&T U-verse 3800HGV-B Gateway modem. All was working correctly before the failure and still work with other machines.

Wireless XP uses a Dynex G Desktop card. To troubleshoot, I connected the wired ethernet port, which also does not work. Both wired and wireless say 'Connected'.

Windows firewall is off. No other firewalls are installed. An old copy of Norton has expired, but I can find nothing to uninstall. Is there some Norton-thing lurking underneath somewhere? I cannot find anything on 'Remove Software' or 'Windows Task Manager'.

ipconfig shows
Connection -specific DNS Suffix ... gateway.2wire.net
IP Address ... 192.168.1.72
Subnet Mask ... 255.255.255.0
Default Gateway ... 192.168.1.254

All match the settings on other computers, except the IP address, which is unique on my network.

ping 127.0.0.1 works
ping 192.168.1.72 works (my ip address)
ping 192.168.1.254 (gateway) ... Request timed out, all four times.
Pinging other machines in the network also times out.

ping 192.168.1.72 from other machines times out.
ping 192.168.1.254 (gateway) from other machines works fine.

Network diagnostics shows:
Network adapter - FAILED
DefaultIPGateway = 192.168.1.254 (Same Subnet) FAILED - ping timed out
DHCPServer = 192.168.1.254 FAILED - ping timed out
DNSServerSearchOrder = 192.168.1.254 FAILED - ping timed out
DHCPEnabled = TRUE
DHCPLeaseObtained = (today, the day I booted it)
DHCPLeaseExpires = tomorrow, one day later
DNSDomain = gateway.2wire.net (this is correct)

Connection light on both ends of the wired ethernet blink as if traffic is occuring. Outgoing packet count increments by two when I ping, but incomming does not. Incomming packet count increments when I repair the connection, getting a new IP address.

I have tried everything I can, but no luck. Something is blocking my traffic in both directions. Is there a way to troubleshoot the traffic?

[austineckert]

I followed the steps outlined on www.askdavetaylor.com and the problem disappeared. There was apparently something remaining from Norton that disabled part of the network.
http://www.askdavetaylor.com/how_can_i_fully_remove_norton_antivirus_from_my_sy stem.html