Get online support
Hi re tp-link modem wifi router tp-link Archer VR1600v how set the Router so it automatically switches between the wireless frequencies 2.4GHZ and the 5GHZ?
The 2.4GHZ and the 5GHZ are to be selected manually on your devices.
Your modem will only automatically select another Wi-Fi band/SSID, if your existing is not working or not detected.
You may check out this Community thread for more info: Solved: TP-Link (Archer VR1600v) WiFi instability - TPG Community