Can\'t connect wirelessly to MI424WR

[roguecp101]

I am using Windows 7 on my laptop and trying to connect to my dad's Actiontec M1424WR router wirelessly. It picks up the signal fine, but whenever I try to connect, it takes a while and then just says it can't connect. It will continue to try and connect, only ever getting as far as limited access then quickly losing the connection, all with a Good signal. My dad and brothers all use Windows 7 laptops as well and they are and have been connected just fine. We tried a wired connection and that works perfectly too, so the only problem is getting it to work wirelessly now. Any help or experience would be greatly appreciated.

 

[eibgrad]

Is the router wireless G, N? Is the wireless adapter G, N?

What are you using for encryption (WEP, WPA, WPA2)?

Is this a router/laptop combination that has never worked correctly over wireless, or has worked previously and only became a problem recently?

Are you using your laptop's built-in wireless adapter, or an add-on (e.g., USB)?

What happens if you're right next to the wireless router, same problem?

Try briefly disabling wireless security on the router, any change in behavior by your laptop?