You’re going to want to match two values between the router you have and the extender you want to buy: the Wi-Fi generation, and the Wi-Fi speed. The generation will generally be either Wi-Fi 5 (802.11ac) orWi-
Do a 30-30-30 reset. Press the reset button for 30 seconds (you'll probably need a pen for this). Without letting it go, disconnect the power for 30 seconds. Plug the power back in, and keep pressing the button for a further 30 seconds. This helps erase the memory of the router ...