You can access the router's admin page with those steps: 1. connect your phone to the wifi of the router 2. open web browser and type in http://192.168.0.1 (if you have changed the LAN IP of the router, type in the one you changed) ot http://tplinklogin.net , then press enter 3. put in admin for both username and password to log in
You may refer to this link: http://www.tp-link.com/en/faq-87.html