If the person is hacking the MAC address, and disabled the Wifi, you’ll have to go in with an ethernet cable somehow. Just know that the MAC for ethernet is different than the Wifi on your computer.

If that’s still not good, you’ll have to reset the router to factory settings (I think it’s using the red reset button above the top ehternet connector, but it’s very sensitive and could reset more than it’s supposed to depending upon how long it’s held in. Do some research before doing this and use at your own risk).

Once you’ve reset it, you’ll want to disable Wifi completely and use ethernet so you can re-configure it (including new, secure wifi and admin passwords) without the hacker getting involved. Once you’re confident it’s configured properly with new passwords, you can put the Wifi back on.

You may want to set a new set of MAC addresses to Allow access, but it seems like that’s not going to do much.

* Disclaimer: I am a HughesNet customer and not a HughesNet employee. All of my comments are my own and do not necessarily represent HughesNet in any way.