How to enter Emergency Recovery Mode？
When you press RESET button for Disconnect the power, Then turn on the power, after 15 seconds release the power.
Launch a web browser, such as IE Web browser;
In the address bar, input 192.168.1.1 and press Enter.
Into the U-Boot administration page, open the following label:
Find the MAC label on the back of the router, enter the MAC address label to the following:
Confirm MAC is correct, click ‘修改’ to save the new MAC address, then restart the router.