I've an Asus WIndows 11 Laptop and decided I want to use my OSTC 2C and 2N better i.e. some customisation and download the divelogs.
I've downloaded OSTC Companion 3.2.1 and have installed this but I get the error below

I open the app connect my OSTC to the laptop, and select the OSTC2 mk2,2N,2C option from the drop down then connect I get the following error ;
OSTC2c selected.
Connecting...
Port is not defined.
Cannot connect : Port is not defined.
Error: Cannot connect : Port is not defined.
Do Ineed to download a different version of the Companion?, if so which one?.
Bearing in mind I'm not the best with laptops, does anyone have any ideas of what I need to do to get the laptop and OSTC talking to each other please?.
OSTC 2C is on V3.11
OSTC2N is on V3.15
When connected the battery charging light flashes.
Thanks
Laurence