does the router have nat/ip and 1 ip out ?
use static! ip , in my case 10.0.0.2 , netmask 255.255.255.0 (some systems needs 255.0.0.0)
gatweway should be the same as your router gateway in my case 10.0.0.1 .
if i set dhcp then it will drop the connection alot!.
hope it helps.