Octoklipper refuses to connect to my printer

I was able to get klipper set up and working on mainsail but it won't connect to octoklipper, but octoprint will connect to the printer with octoklipper disabled.

Hello @RyaJa !

You may consult:

BTW: Is the MCU serial correct?

The MCU works on Mainsail, but it seems octoklipper won't connect. or at least is stuck saying klipper is on "Standby" or "Connecting..." Looking at klippy.log the mcu is awake.

Then we need the systeminfo bundle.

And please also stick to the Klipper forum.