I tried every single image from oowow right now and it is every time that wifi performance seems unstable at best and downright unworkable most of the times.
I tried the ubuntu images first but they are basically unusable. You can’t really own the machine once this images run ubuntu, because every time you change something (like keyboard layout or vlc configuration) it forgets about those at next reboot. Let alone that you could run any media files decently on these images: it stutters, skips and crashes all the time. Sometimes the wifi or network in general would not work after reboot and the board had to reboot a second time to get passed that hurdle.
Android was a bit better, but only the last image was a bit usuable. The first image was plainly unable to maintain wifi connections at all, the second (from december) was simply not booting at all an the third lost wifi (and even ethernet sometimes) every time after reboot.
Once a wifi connection was lost (even without a reboot - I restart my wifi router sometimes for maintenance), there is no way to re-establish it again, without re-installing the machine entirely.
Every other computer/tablet/GSM in the room I tried did this perfectly al right. wifi 2.4 or 5 ghz are quite stable. 5 GHZ is strong enough to stream bluray video’s accross the house on almost every device (linux, windows, android, iOS, you name it, we use it).
Even when I booted my device really at 10 cm away from my wifi router it displayed similar bad behaviour. As it did with the ethernet cable via USB-C: unusually sluggish, unstable, etc. The signal was, as always, strong as an ox, yet the khadas edge2 didn’t detect a single packet.
The OS offered by Oowow until now are strictly unusable for almost anything IMHO: not for media (netflix app won’t work, even not via APK), not for gaming, not for testing.
It might also be a hardware problem, but I wouldn’t know how to detect the difference.