Question: you mention your computer is set to 10.1.1.1 above with the player at 10.1.1.2 (I may have that reversed). But if you have two NICs, what IP is each NIC set for? It might be that you are running 10.1.1.1 on each NIC, and your system is confused and the ping is going out the wrong physical interface. I know you received a response from your ping, but could that response have been something else on your other NIC card (NAT router)? Just checking.