How to disable Mac filtering?

Me and my mom wanted to do a joke on my dad since he's always on the Internet. We did the Mac filtering on our AT&T router. We want to turn it off, but we need to go to the IP address site, and for that, we need to be connected to our Wi-Fi network. We tried turning it off and turning it back on. No results, when we try to connect, it says " unable to join ". He's really upset, can someone give me serious answers please? ( please do not say login to the router and uncheck it, because I'm on an iphone 4 and it keeps saying the serve is times out or something and I have to e connected I think )

You will need to logon to your router and check it, if you don't want to hear that answer then just don't do anything and get by as you are.

Get a cat5 cable in a computer direct to the router then try.

Log into your router using one of the following addresses:

1.http://192.168.1.1
2.http://192.168.0.1

The username must be "admin" and password would be "admin" too or "password" or in case if you've changed those details, it would be something else.

Anyway, once you've logged on into your router's management console, you'll find settings for MAC filter in the Wireless Security area. Browse through the settings in the left column and you'd find it somewhere in there.