First you need to find your router ip addreas Use computer and use LAN cable and connect to the router then use your router ip addreas and paste it in browser then it will redirect you to it's router menu then you need user and password if you know insert it in if you don't know you need to go in your router instruction to find it or if it isn't in the instruction please your network host or router's company to get these type of things. If you already in router menu just take a time like 5-10 mins to discover your internet menu then if you sure if you are doing right thing just do it! For me I just need to find WLAN tap then security then change it I don't know yours router's menu please reply me for more to solve more problem!