New wireless router can be normal online but not open 192.168.1.1

A net friend to me of feedback, the new connection to the wireless router,Internet lights are not bright, but it can be normal to the Internet, but can not open 192.168.1.1, is how to return a responsibility?
I bit curious and open configuration of the router interface is how to make the router normal Internet access, Murphy is installed broadband get help?

In fact, the IP address of the router is not necessarily 192.168.1.1, and a significant portion of the router’s IP address 192.168.0.1 to see the back of the router tabs, is what address access router.

Since it can be normal online, you need to consider other reasons, such as: IP did not get, the network did not plug, DNS error, etc..