My iPhone 3G won't connect to my WiFi network. Any ideas?

[MeRyanSch]

I have an iPhone 3G that was running 4.1 and was jailbroken using PwnageTool 4.1.2

After the jailbreak though I'm unable to connect to my WiFi network at my house. It sees the network, but after I put in the password it doesn't connect. I few WiFi Networks and I just see the spinning loading image next to my network.

iPhone 3G
4.1 Jailbroken
PwnageTool 4.1.2
No SIM

[iYeow]

Go look at your wifi address, do a forget the network and reconnect again.

[MeRyanSch]

Thank you!