You can turn off auto reconnect on your phone of your standard wi-fi⁷ connection to TPLink_etc , attempt to connect to 5ghz, let connect to Archer(Don't back out), you need to power on your ethernet device or a separate device that's going to partition or familiarize your previous Setup on Wi-fi...(if you do) Let it disconnect if it does, attempt back to regular wifi⁷ and Try Again 3 times using the bar code underneath, reconnect the ethernet cable that's going to your 2.5G(you already may not have to try again the 4th time.) [Remember, 7 rational times of anything, contact support]