Two CAN switch boards

I have two can switch boards, one controls the switches on my steering wheel and the other I want to use for fuel related settings. The first I’ve remapped the can ID to 0x644, all works fine.

When I connect the 2nd board everything stops working. The CAN Hi and Low are connected correctly and the board is getting power (yellow light flashing).

The Light software show erratic messages.

Any ideas ?

Hey :slight_smile:
What messages are you getting on Light Client? could you share screen shots please
Have you checked the CAN bus speed of the two expanders just in case?