I have actually switched to using the example: Connect to the main router on the 2.4GHz band and connect to your devices on the 5GHz band. This is the example they had at...

@NikD63 I also have the Verizon Fios G1100 Dual Band Quantum Gateway AC1750 Wireless Wi-Fi Router. Below is a link for configuring High Speed Mode in a dual band Range Extender. My router hasn't been...