Wifi keeps asking for router password

Hi All,

Has anyone had problems with wifi dropping the connection and then failing to reconnect as the phone says the password is incorrect, once I type the same router password again it's fine!

I have quite a strong password on my router and it's getting somewhat annoying typing it in five times a night!

I'm ony about 3 meters from my access point and my laptop hasn't had any issues.

I'm trying the static IP option at the moment but open to suggestions!

Thanks,
Nobby