How to prevent others from rubbing nets

In the lower right corner to find the computer Butler real-time protection, click on the Open, and then click the Toolbox, you can see the router butler.

After clicking into WiFi connection management, here is an instant detection, click.

At this time let landing a router, first according to the prompts to log in, enter user name and password, unexpectedly is wrong, I remember wrong?

Here I think I have not thought of where the problem, tried a few times, would like to log on the router to see, enter 192.168.1.1, it seems that my password is no problem, or modify the login password.

After entering the username and password, enter the new username and password and save it.

Then will exit the router's landing, let the landing, here fill in the new username and password for landing.