TTS's ALDL tester program may or may not mean anything on my cables. It's designed to test their cables, and I've never even seen one. I did test all of the cables before I shipped them out, but it's possible that something could've happened to it in shipping. If you hook up with someone else, try using their known-working PC and cable in your truck. That will verify that there isn't some problem with your truck's wiring or something. Then try swapping in your cable. If it doesn't work, then there's most likely something wrong with your cable. If it does work, then it's probably a computer setting.
I honestly don't know what all those settings do, but mine didn't work at the defaults, and does work at whatever I ended up on in the 190-200 range.