If you did a factory reset to the gaming adapter, the default IP address becomes 192.168.1.250
You will need to set a static IP on your machine to something like
192.168.1.10 / 255.255.255.0
admin / admin is the default username and password.
here is a reference to a user manual for the WGA600N - look to page 8 for connecting from a computer.
http://static.compusa.com/pdf/Linksy...00N-manual.pdf
Good luck - Dave G.