(ASUS Router)How to configure separate Wi-Fi SSIDs for 2.4 GHz and 5 GHz bands?
1. In the Advanced Settings area, click Wireless.
2. On the General tab page, check whether Enable Smart Connect is On. If Smart Connect is enabled, disable it to separate the SSIDs for the 2.4 GHz and 5 GHz bands.
3. In the Band drop-down list, select 2.4GHz and then set Network Name (SSID) to <xxx&rt;-2.4G, where xxx indicates the Wi-Fi name. Save the setting.
4. In the Band drop-down list, select 5GHz and then set Network Name (SSID) to <xxx&rt;-5G. Save the setting.
When the preceding settings are complete, the new Wi-Fi names will Appear on the Wi-Fi settings page of your mobile phone.
Note: After the Wi-Fi names are changed, you need to reconnect the devices that use this wireless router. The password remains the same if it has not been changed.