First, you can log in to the router management interface and click Restore Factory Settings in Advanced Settings, Device Management and Restore Factory Settings. Secondly, you can restore the factory settings through the reset button on the router. There are two types of router reset buttons, reset buttons and reset holes. Press and hold the reset button for 5 to 8 seconds until the system status indicator flashes 3 times, and then release the reset button to reset.
If the red light of the Rubik's cube box keeps flashing, it means that there is something wrong with its internal wiring and it needs to be dealt with in time.