1. If you want to prevent others from rubbing wifi, you can set your own wifi password more complicated. Some simple digital passwords are very easy to be cracked by violence. Therefore, it is suggested that the password should be set in combination of numbers and uppercase and lowercase letters, and be careful not to be the same as the online banking password or email password, and the password should be revised regularly. 2. You can also change the default IP address of the router to prevent others from rubbing wifi. If the default IP address is192.168.0.1,it can be changed to192.168.01,which can reduce the probability of being guessed and avoid routers. 3. Hiding your wifi name can also prevent others from surfing the Internet. If you want to hide the WiFi name, you need to log in to the router management page. After logging in, find the wireless setting option, first set the encryption mode to WPA2, and then turn off the broadcast SSID item.