I have westell 7500 router, it works for my computer to go internet through cable, but wireless part does not work for my computer and cell phone, the password I typed in is WPA code in the back, actually I tried all code on the back of router, none of them work. And also, I pushed the reset button for 45sec, stlll not work. How to figure out the problem? Thanks in advance !

Did you unplug it and let it power back up after the reset?

If nothing else change the password to one you know on the router.