@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

@Bugs22 What's your Deco M4 country? US or EU

@ImtiazAli Yeah but Samsung devices support Fast Roaming too.

@Decouser10011 I think your Deco M4 is using custom firmware by your ISP you have to call them and tell them to update your Deco M4 to the latest firmware 1.7.0 or you can update it by yourself by...