That was an invalid setup. There are many discussions about setting up what you are trying so I will defer to those. I never write about ICS.
Again, I no longer discuss ICS but it is what you would use to solve this.
I have a laptop running windows XP Pro; it has 2 network adapters, wired (NIC) & wireless (WIFI). I have never needed to connect the NIC until recently when my game console was moved to the same room as the laptop. My intention was to buy a cheap switch and assign static IP's to both the X-Box & the laptop's NIC. That way, they could still connect and stream music, video, etc... AND the WIFI would keep me connected to the internet. The new configuration works great for streaming from laptop to xbox, but now my computer can't ping outside of the LAN when the ethernet cable is plugged in. During a ping request, unplug the NIC and CMD chokes for a minute then I guess the wifi takes over and the ping is successful.
WIFI = 192.168.1.2 (DHCP) from router 192.168.1.1
NIC's = 192.168.1.199
X-Box = 192.168.1.200
On the laptop, I have...
-used ipconfig to verify that both adapters have ip addy.
-changed default gateway of NIC to the router (192.168.1.1)
-changed default gateway of NIC to the WIFI (192.168.1.2)
-NIC's gateway to either above and DNS to either of the above...
WHAT ELSE CAN I DO? Is there a way to force the WIFI to WORK even when I have the ethernet cable plugged into the NIC? Is there a way to force the WIFI to have a higher priority than the NIC?
Any advice is much appreciated.