Arris SURFboard SBG900 (49402201900) Modem "motorola wireless turn firewall" Questions

Motorola SBG6580. Two laptops and my Ipads connect wirelessly just fine and get Internet. My third laptop connects fine directly, but when try to connect wirelessly I get Unidentified Network and can&

...wireless LAN with my laptop which the router is Motorola SBG900 . ISP:Telstra Internet. I can connect the internet normally. Sign in MSN, downloads.... But I can't play any network games (wow) or ...