Track Mk. 2 stopped working using OBD cable

[kzielu]

Track Mk. 2, used to work perfectly fine.

I've updated firmware to 2.22.2 (not sure if it's related to this but I have a feeling it stopped working after I've done it). It powers up perfectly fine using USB but it's dead (no lights) using OBD2 cable on 3 different vehicles that for sure have working OBD ports.

I've also tried different OBD - RJ45 cable from Amazon but I am not certain it has correct pin out. What are the chances that either cable or RJ45 port is bad ? Something else that I am missing ?