Problems with wifi in acces point on Asus rt ac3200

[nisrani23]

Hello

I have a Asus rt ac3200 in acces point.
Sometimes when I want to connect to wifi it won't connect.
The wheel just spins on mine iPhone and when I look at the info button on the iPhone I see another IP address but the tv or the xbmc player that is connect true lan works fine
When I power off the Asus then wifi works fine again
Any thoughts what it could be

Thanks