@MMK_BD You have to remove other Deco units from your Deco system and just connect the BE65 and change the channel from the Deco App and use 80 MHz which is better to provide better performance and...

@MMK_BD If you are from Bangladesh or any other country which can allow only channels 149, 153, 157, 161 and 165 on 5 GHz and 6 GHz and if you bought your Deco system outside your country which...

@Bugs22 You can use this option to connect from one deco to other deco but can work on wireless backhaul. Like Main Deco to Satellite Deco 1 and from Satellite Deco 1 to Satellite Deco 2

@Bugs22 Connection Preference can work on both Router Mode and Access Point Mode to use Connection Preferences go to client list and click on the client and there you can see the Connection...

@Bugs22 IoT Network can create separate SSID on both bands 2.4 GHz and 5 GHz and also you can choose which band you want to use you can disable any one of them and Connection Preference is a feature...

@Bugs22 You can update your Deco M4 (V2) manually by Web UI and you can download the firmware from the link below 👇🏻 https://www.tp-link.com/au/support/download/deco-m4/v2/#Firmware