Hi,
Faced with a very unhelpful message on first connection of the DSLR to ASIAIR (Can’t stop immediately, please wait seconds), we waited.... and waited...
Solved the problem by :
1. Set iPad to airplane mode.
2. Set iPad Hotspot to NEVER.
3. Connected iPad to ASIAIR 5G.
4. Check Nikon WiFi is OFF.
Works perfectly, for example 60 secs preview gives 60 secs exposure.
Note to ZWO: download of 26 Mbyte NEF for each preview is unnecessarily slow. Why not shoot preview in NEF + JPEG and download only the JPEG to ASIAIR?
Hope this helps anyone with the same issues.