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It will be hard to identify the band that you're connecting to, if they have the same SSID or network name.
We recommend to at least put an identifier for the other band. For example, 2.4GHz SSID = TPG_WiFi, 5GHz SSID = TPG_WiFi_5GHz.
Hi sp. Using different names allows you to connect high bandwidth devices to the 5G band and slower devices to the 2.4G band. If the 5G reaches all through your house, you can connect devices to it until you notice performance issues.