My situation is somewhat different. Can2 is sick, but Rx err is 0: OVMS# can can2 status CAN: can2 Mode: Active Speed: 500000 Interrupts: 6945528 Rx pkt: 7012397 Rx err: 0 Rx ovrflw: 2483 Tx pkt: 6801 Tx delays: 0 Tx err: 0 Tx ovrflw: 0 Err flags: 0x2040 If I power cycle the can bus then things start to work again. OVMS# power can2 off Power mode of can2 is now off OVMS# can can2 start active 500000 Can bus can2 started in mode active at speed 500000bps OVMS# can can2 status CAN: can2 Mode: Active Speed: 500000 Interrupts: 10263 Rx pkt: 10340 Rx err: 0 Rx ovrflw: 6 Tx pkt: 0 Tx delays: 0 Tx err: 0 Tx ovrflw: 0 Err flags: 0x2040 My experience is that can2 only lasts a few minutes to perhaps an hour of driving before stopping. I'll see what it looks like next time it stops.