Airport Extreme Wifi doesn't work fine

Hi all,

I have a Airport Extreme and last week the Wifi does't work. I restarted to fabric configs and realized the initial setup again but the Wifi connected normally so 10 minutes don't work again. I used to access the Airport Utility and I saw that Internet Access was Disconected but when I put the cable on Aiport LAN Interface I surf in the Internet normally, only the Wifi not possible.

Can I Help me?

Regards,

Caio Gonzatti