1LC toolboard no longer found

[MartinNYHC]

When I switched on one of my printers this morning, all of a sudden the 1LC toolboard is no longer recognized.

Already did a factory default reset of the toolboard and checked the cabling. Yesterday evening it still was working and there are no changed to the configuration.

Duet3 6HC --CAN--> Duet3 3HC --CAN--> 1LC. All running RRF 3.4.0.

Any ideas please?

[MartinNYHC]

Just connected a brand new 1LC toolboard v1.2 and getting the same error.

[jay_s_uk]

@martinnyhc i would suggest check your CAN-FD wiring

[dc42]

@martinnyhc what is the red Status LED on the tool board doing?