Plug it in, connect your WiFi to it and go to tplinkrepeater.net (if setting up 1st time, the website loads up itself). Then you just follow on-screen instruction - scan for networks, choose yours, change extended WiFi name and set password (you can keep router password as well). Voilà, all done.
+1 I have this and it’s a one button push on the extender and another on your router to connect. It even has its own app so you can customise it. You can even turn the lights out on it. I have it on my landing and works great as a night light. Never dropped connection once and had it about a year.
Got one and works well. Use it to bridge gap from router to garden by plugging in end of house.
Both choose one or the other I have it and it works fine but if you have a rubbish unreliable router that drops signal even when your near it don’t bother with this
Have this and it’s terrible. Loses connection all the time for some reason. Have reset it to factory settings too but still doesn’t help. Looking into mesh WiFi now or the Uniquiti APs.