JTSAN My astronomy dealer says that the ZWO wifi extender cannot be used with the air plus
You can use any WiFi extender/router with the ASIAIR; but do not buy the one that ZWO is OEM'ing, it is poorly designed and built and prone to overheating. For simplicity, get what are usually called a "travel router" from TPLink (like the AC750 model) or the GL.iNet (like the Slate model) instead. Both can be powered through a USB power supply -- if you don't have a 5V USB power source, you can use one of these adapters to provide you with a stable 5V output from your 12V system:
https://www.amazon.com/gp/product/B07SS6XTZY
Do not power a router from the USB port of an ASIAIR. ZWO has never released the specification on how much power is available on the ASIAIR USB ports.
Connect the ASIAIR to the travel router through their Ethernet LAN port, so that you have zero dependency on the ASIAIR WiFi -- the source of your problem.
The best thing to do with the third and fourth generation ASIAIR is to further cap the WiFi from radiating (or receiving) any signal. Remove the SMA antenna, and cap the SMA connector on the ASIAIR instead with a 50 ohm terminator, like this one:
https://www.amazon.com/gp/product/B0719C1T99
Be sure not to mistakenly use a shorting cap instead of the 50 ohm termination above. You could potentially burn out the WiFi transmitter on the ASIAIR if you short the antenna termination out -- depending on whether the chip set in the ASIAIR can handle an infinite VSWR.
The second thing that you should do is to mount the router so that it does not move during the night. You can for example strap the router to a tripod leg, so that even when the OTA moves, the antenna of the router is fixed.
You can also run an Ethernet cable directly to your home network (bypassing the travel router). With a Cat6 cable, you might be able to run 100 m of cable. Your tablet or Apple-silicon based computer is then connected to your home network (WiFi, ot Ethernet). This is the most reliable and highest speed way to connect an ASIAIR app to an ASIAIR device.
Chen
