iPod Touch 5 can't connect wifi only using WPA2
My daughter has an iPod Touch 5th generation that one day stopped connecting at home to Wifi using WPA2. I use an Actiontec MI424WR Rev I and while her iPod Touch keeps showing the error "incorrect password" I use on the same network with no issues 2 ASUS laptops, 1 Samsung laptop, 1 Dell laptop, 1 iPad 4th gen, 1 iPhone5, 1 iPhone 5c, 1 ipod touch 3, and 1 Android tablet. The most frustrating thing is that at school and other places where no password is needed she can connect. I've tried to use specific channels on the router, as opposed to automatically assigning one, with the same results. The other devices work, while I keep getting the same error for her.
Any help or suggestions would be really appreciated.
Thank you
Apple TV