2014 Ford Explorer ignition, key, or anti theft preventing engine start?

I can't start my car. AAA Battery test reads full charge.

The key seems to be ignored when turning the ignition. No lights come on. Yet, the displays/screens work when the doors open, and the radio, Windows, locks, and tailgate all work. Key fob works with locks just fine.

The viper remote-start started the engine as we started to troubleshoot. But, when I inserted the key the engine shut off and has never started since.

I think it's a chip/key problem based on what I've read. Any ideas?

Ford Explorer won't Shift (automatic)?

Ford Explorer won't Shift (automatic)?

Added (1). So my car has been having an issue for a while. I have an automatic 1999 ford explorer. When I accelerate (like pedal to the floor) the car gets up to 2500 rpm but doesn't feel like it shifts gears and just stays at 2500 rpm VERY slowly accelerating. Also going up hill I floor it and it does the same thing, just sits and 2500 rpm and doesn't shift or anything as it slowly looses speed (to which I'm still flooring it). Any thoughts on the issue anyone?

What can be causing the engine to knock?

It's a Ford Explorer 06 v6 4.0 engine with 94965.2 miles on it. I mainly use it for work I do the oil changes on time I use mobile one 10w 30. Should I still be using the same oil or could this be a different problem? It runs great really smooth don't have any leaks I don't understand why the knock let me know what you guys think.