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SB2240 is invisible on CAN bus



I'm having an issue getting CAN working.  I can see the octopus board on it, but not my BTT SB2240.  The resistor jumper is in place, katapult is flashed on the SB2240, klipper in USB-CAN bridge mode is on the octopus, I can see the octopus in the CAN query but that's it.  All menuconfig settings triple checked.  The CAN cable is good (checked continuity and resistance). I've recrimped the RJ12 connector multiple times, and tried switching the HIGH and LOW wires just in case.  What am I missing?

Edited by Ran
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