Westell 7500 router.. what a piece of junk
 

Free shit often sucks. I disabled the hardware firewall and it's still blocking shit. Not to mention what I had to go through tricking it into working with a cable modem since it was originally a dsl modem/router combo.

Does anyone know if there's any modified firmware out there for it? I can't find anything amywhere

Time for you to call your internets provider and get teh real shits!