Firstly, thanks for replying! I’ve tried to go into wifi config in Retro pie and unfortunately no networks are displayed, there should be over 10 e.g. neighbours etc.
trying sudo ifconfig wlan0 up just gives me error while getting interface flags: no such device.
In the pi I have plugged in a usb keyboard, it’s also hooked up to a joystick setup that me and a mate have built and a usb gamepad. I had no wi fi before plugging in the custom joystick setup and the gamepad / keyboard were plugged in then. There’s no hub plugged in, I do have a 2.1 setup plugged into the headphone socket.