Simplest solution would be to install Wireshark on a PC connected directly to that port.
Most ISPs will block packets to and from 192.168.0.0 addresses, so no packets from these addresses should hit your external port. It wouldn't hurt...
First thing I'd do is remove that secondary DNS. It's only going to confuse matters and if you have DNS on the server configured correctly, it...
Have you tried setting the TCP/IP settings manually. Choose a unique IP address: if your other PC is 192.168.1.100, try using 192.168.1.120. Use...
How does the modem connect to your PC: USB or Network cable?
Hearts!
Try uninstalling the QoS packet scheduler (shown in Connection properties - above TCP/IP)
The user name may need to be in the form: comp_name\user_name Where comp_name is the name of the PC you are connect to, and user_name is a user...
Depends on the game - graphic won't be fast enough for most graphic heavy games. Half-life no, Solitaire would be fine.
Why not just plug the XP pc straight into the router (or get a wireless card for the XP system)? That would be a lot easier that trying to share...
What's the model number of the Linksys router? Why do you connect the modem to one of the ports 1-4 rather than the WAN port?
Separate names with a comma.