MBP won't connect to wireless network

[Ender17]

My MBP keeps "forgetting" my wireless network at home. It will work fine for a while and then it will stop connecting and give me a connection timeout error. If I change the password on the network (WPA2) it will work fine for a while.
iPhone works fine on the same network and MBP works fine at school on unsecured network

ideas?
it's the last generation, right before unibody

 

[msprouls]

Have you tried deleting the Keychain for the Access Point and then re-connecting?

I had this problem once and that fixed my problem.

 

[dingus]

I know next to F.A. about this stuff but I was experiencing something similar and changing the channel of my Airport Extreme did the trick.

 

[Ender17]

Have you tried deleting the Keychain for the Access Point and then re-connecting?

I had this problem once and that fixed my problem.

how do you do that? I went in and deleted everything from the "networks to remember" section