NIghtgear Nighthawk M6 - Nikon Z9 - FTP Settings

Hello there,

I have recently purchased a Nightgear Nighthawk M6. I am hoping to set it up for sending FTP files from my Nikon Z9 to my Macbook and to find out the best and most efficient settings.

This is for sports photography and I need the images to be sent as quickly as possible without bottlenecks. I was hoping that having the Nighthawk would enable me to use the 5ghz channel but unfortunately this does not seem to be recognised on my Z9. The 2.4ghz channel is showing but it doesn't seem to be working particularly well. I tried it out for a game yesterday and it was only able to send a few files before crashing and slowing down to a stop. Also some of the images that it sent were duplicated as well as some of them being being unable to open as they were damaged.

Is there anybody out there who has experience of using the NIkon Z9 with the Nighthawk or a similar setup? I would greatly appreciate if you could help me set up the server with the camera. I am a little bit confused by all of the settings and really hoped that it would be simpler than this. 

Any help or advise would be greatly appreciated.