Is your new CLC a BP4 but the original is not? In this case the old software would not be compatible and you wouldn’t get a WD. All that’s needed to get the WD is a good CLC with good, compatible software and good 5vdc to the board. Ideally 5.1vdc and less than 5mv of AC.

You really have to use the right tool to punch down the wires into that MTA-156 connector. There’s a cheap one that’s just a die on a piece of plastic.