@ConfidantTipu
Hi,
Do you mean your AX50 just does not broadcast the correct country code "BD" for Bangladesh?
Or do you not see the 5G SSID at all?
If yes, have you already tried switching to another channel?
Which channels are you able to select in the 5 GHz band on your AX50? (in the configuration webGUI under "Advanced" -> "Wireless" -> "Wireless Settings" -> "5GHz")