Unlike simply rebooting the router (turning it off and on), a hard reset wipes all your custom settings—WiFi name, password, port forwarding rules, and parental controls—returning the device to its "out of the box" state.
Locate the Router Flip your Xiaomi Mi 4C router over. Look at the back panel where the Ethernet ports are. How to Hard Reset XIAOMI Mi WiFi Router 4C
Is your Xiaomi Mi Router 4C acting up? Forgot the admin password? Can’t connect to the configuration page? If you are experiencing slow speeds or weird glitches, a Hard Reset (also known as a factory reset) is often the fastest solution. Unlike simply rebooting the router (turning it off
A paperclip, a SIM ejector tool, or a thin pen. port forwarding rules