Hi,
I did resolve it.. If I am honest. I have nooooo idea how I made it work.
I just kept clicking through the options, repeated it a handfull of times. Finally I launched MSFS 2024 and it connected.
I didnt do anything special ie some of the instructions start talking about changing IP address’ etc I didnt do anything like that. I want to say near the time I got it to work when I downloaded the zip files I extracted it to my desktop and removed it from the folder before installing/ clicking on it. Could be a coincidence but shortly after that it was working.