WiFi loosing network key

[imnuts]

I'm not sure why it's doing this, but my home wifi network is using wpa2 personal and i have it setup on my phone and it connects fine, but it's having a problem saving the network key needed to connect. Usually, it will be fine 2-3 times after wifi was turned on to connect, but then it forgets the key again and I need to re-enter it. I've tried entering the key, turning off wifi and then back on, it remembered the key, but the next time wifi was turned on, it was lost again. Same thing with a soft-reset. I'm not sure what's causing this as I never had this issue on my phone before. Anyone else have similar issues or know of a way to possibly fix this as it's really annoying putting the key in all the time.