Wifi dropping problem?

Hi.

Can't figure this out but sometimes my wifi drops but the LAN works fine. I have to restart the router
to get it going again. I can see the network but it will not connect. Ports are forwarded. Anyone got any idea? It could work for hours then drop randomly. I am testing now by changing the channels.

Thanks

Check your router config. It might think all the searches coming in from random IPs are a DDoS attack. Just a guess.