[ozrien]

Yeah definitely leave the bitrate at 1Mbps. That's what used in FIRST, the other bitrates are for non-FIRST uses and definitely won't work. Also the RED led state will stay RED until 2CAN sees some CAN traffic regardless of the firmware level/ plugin, or presence of the cRIO. It does sound like a cabling issue which is strange since you mentioned you just swapped out connecting the RJ11 from a Jag to the RJ11 of the 2CAN.

Can you try this simple setup after setting the bitrate back to 1Mbps : take a powered 2CAN and a single powered jag and connect their RJ11s together. 2CAN will automatically poll for the Jag and will switch to orange LED if everything is well.

One difference between the 2CAN and serial gateway is the 2CAN has an internal 120 ohm termination - that way you only need to add 120ohm at the end. With serial gateway you have to terminate both ends. So you might want to remove one of the termination resistors.