I have new DELL laptop with Interl Centrino wireless network card built in.
It works with my home wireless network run by a old NetGear router;
However, when I try to do VPN, VPN client does not connect; I am able
to ping the VPN servers; Looks like return packets from the VPN server
are being dropped somehow; It is a windows XP laptop;

Other laptops at home are able to do VPN connection to the same/different
VPN servers without any issue.

I looked for any firewall on windows xp dropping the packets; Have not
found where to look for windows firewall.

Any help is greatly appreciated;