Wifi Suddendly not working

[babelfish]

Help!

I've read through many posts on this subject but cannot find a solution.

Pi Model: B
RetroPie Version Used: 4.0
Built From: (Pre made RetroPie image)
USB Devices connected: Gamepad, wireless keypad
Controller used:
Error messages received: cant connect to network

The Pi has worked perfectly for over a month, whilst using Kodi I noticed an intermittent connection when looking at the system/network settings.. alternating between connected/no network.

But now, using the built in wifi config within Retropie it can see my network but fails to connect to it after entering the password.

I've tried moving the Pi directly next to the router to negate a signal strength issue.. still no connection.

I assumed that a config file had been corrupted, so re-flashed my card with a fresh image but sadly still no wifi connection.

Is it possible the bult in wifi module has died?

Any advice would be greatly appreciated.

[herb_fargus]

@babelfish possible perhaps. Sometimes I have to attempt to connect it a few times, then I'll reboot and it will work again, also good to check against other computers to make sure it's just the pi with issues rather than the ISP.

Also would be worth checking to see if your power supply is sufficient