Plug in your extender near to your router & press the reset key for 30 seconds. Go to your computer or phone and open browser and type 192.168.1.1 in the top url bar. It will ask for your login information (default username and password is admin for both). Then it will open setup page. Just follow the instructions on the page and from there you can easily set up the tp link. When it get set up you can unplug it and plug it where you have less range of wifi.