[painsage]

and if you set your IP on laptop manually?
it doesn´t make a sense..because the 5 wires from oabr should go directly to obd2, so if there no one of them broken it shouldn´t make a difference where you are connected (bench or obd2 in car)

I tested for wire continuity between the OABR and RJ45 at the end of the OBD cable when connected to car, all is fine. If i set ip adress manually i get the same result.

I'm gonna measure the resistance and let you know.

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If you measure resistance on OBD between rx and tx pairs, what do you get?

Between TX+ and RX+ on my OBD port i get 155 Ohms.