Around 68 ohm between CAN+ CAN+ and between CAN- CAN- of the cable ends.
Wago end module installed, dip switches adjusted before Wago powering up, 120 ohm resistor installed on each side of the cable, the cable is shielded, all done previoselly.
Well, that's all the obvious hardware issues, I think.
The log file is still my recommendation. Also, using the robot Telnet DN scanning commands to search the bus.