If not, the factory value can be restored first. First, find a sharp object and plug it in the hole next to the router's power supply. About ten seconds
Unplug the power. Turn on the power in a minute. The router restored the factory value successfully.
In the absence of a router, the cat can connect to the computer to access the Internet to set up the router.
Open your computer, open the control panel, find a local connection and open it
Select the second auto-fetch, ok.
Or 192.168.0.1 pop up login page, (some routers need to enter account number and password; The security option is: wpa-psk/wpa2-psk, enter the key, or the configured router, must first reply to the factory Settings.