i buyed my mogo pro in june, the first thing that i have done was update the firmware
i have the same issues, my mogo pro loses the wifi connection but i have check mogo's network settings and it is connected, also i check my router app i see that my mogo is connected and with traffic.
but the apps like youtube, prime video and others show me that they cant connect to network.
then i turn off mogo's wifi and turn on again and the app is working again, its very troublesome
my network is similar to the @zhimingmo network, i use tplink deco e3 2 pack that create a 2.4/5GHz dual band network in one ssid
i have updated the firmware yesterday (i received a notification with new version) with the expectation that the issue was resolved, but this persist yet