@Ishtiaque_Rabbi Brother 5 GHz & 6 GHz is not working for you because Bangladesh and Pakistan both allowed only band 4 channels which are 149, 153, 157 and 161 but when u bought something from...

@JunkieXL411 First i think u should try to put satellite deco beside the main deco to check if the issue still persists and also try ethernet backhaul.

@hrreddy Because your phone can support only 866 Mbps link speed. You can check in your phone WiFi settings.

@JunkieXL411 What's your Deco M4 hardware version and firmware is updated or not? And u can also try Deco M4 in AP Mode.

@JunkieXL411 Change your ethernet cable to CAT6

@ryg Yeah like they released Deco E4 firmware 1.7.0 after 2 months.