During a recent trip to Thailand, I experienced two places, where I consistently could not connect to an access point. In both cases I could connect with my Xiaomi Max 2 without any problems. With the program "WiFi Analyzer" (from play store) on the connected Xiaomi, I could see that in both cases, the access point was a Netgear (no idea which one) and that it was a dual frequency access point supporting both 2.4GHz and 5GHz - the Xiaomi was able to connect to both 2.4GHz and 5GHz, as was my wifes Xiaomi A2. The Blackview A20 repeatedly displayed "Obtaining IP Address" but ultimately failed with a "Unable to obtain IP address".

Best regards,
Johnny Norre

Blackview A20 only support 2.4GHz