Issues with setting up Jaguars for CAN

[F22Rapture]

When I pull up BDC-Comm it connects to the Jaguar but does not populate any of the information fields, does not allow me to assign CAN ID's, or do anything else for that matter (flashing firmware, etc.)

Since it doesn't seem to put the Jaguar into assignment mode when I press the button at all, it seems that it's detecting something on that serial port but not actually "connecting." It remains in slow-blink mode, rather than solid yellow indicating a connection.

The same equipment; cables, terminator, adapter, etc. *was* working last year.

I've checked the terminating resistor with a multimeter, and it works properly.

I've tried reinstalling the USB-to-serial drivers, and tried multiple computers. It should also work properly.

I think the issue may be in the Serial-to-RJ12 adapter, but from what I can tell it was wired correctly. And like I said, it worked last year.

Using BDC-Comm 107.

Any thoughts?


EDIT: just found this thread, my symptoms are almost identical except we can never make it to assignment mode