keramos Would changing the antenna help?
A higher gain antenna only helps if the ASIAIR does not move during the night.
As passive devices (energy conservation), antennas do not really have "gain." What a "higher gain" antenna does is to be more directive (i.e., directs the energy to a smaller solid angle).
Because of that, while the directed beam is stronger, the rest of the directions will be weaker.
Mounting a high gain antenna on top of a moving OTA is the worse thing you can do.
Because I anticipated lots of problems with a third generation ASIAIR, I don't have one, albeit, WiFi won't be a problem for me since my ASIAIR (second generation) is LAN connected to an error mesh router that is right next to it (both ASIAIR and eero are fixed-mounted at the base of my true-pier). I'm not smart enough to do QA for QWO.
I thought Station mode would help in someway but it didn't, moreover I think I didn't set it up correctly.
Station mode requires the ASIAIR to talk to your router; if the WiFi radio works poorly with your tablet, it will also work poorly with your router.
Remember that WiFi requires both directions to work. It must transmit a decent signal, and it must also receive well -- meaning there is no RF noisy components near the antenna. I suspect that in your case, the latter is the culprit instead of the former.
You might see if you can get a 2m or so coax with SMA connects at the ends, and extend the antenna connection to mount the antenna itself away from the noisy electronics. And you might be able to use a higher gain antenna too. Be sure to get a good cable since a high VSWR can potentially burn out the WiFi transmitter.
Chen