192.168.1.1 is an address primarily used by Linksys routers. It is used by router to initialize itself and connect to other devices on the network. Other devices use this address to connect back to the router.
How to configure your Linksys router
To configure your router you need to type http://192.168.1.1/ into address bar of your browser. You should see a page with router details which will ask you for username and password.
If you see any other page like search results or anything else then router is not connected to 192.168.1.1 address or you computer is not able to see the router. In this case try to check if router is connected to your computer or if Wi-Fi is enabled on your computer and you are connected to the right wireless network.
Recovering router password
If you don't remember your router password please read article about recovering router password. You can also try default router passwords for IP 192.168.l.l which are available below.
Looking up your router IP address
If you're not sure that your router IP address is 192.168.1.1 and you don't see your router administrative console at http://192.168.1.1/ then most probably your router is configured with different IP address and you need to look it up.
If you type 192.168.1.1 in your browser and don't see router administration page then you may have to check following issues.
Check that your router is using 192.168.1.1 as a default address
Check that your router is connected to your computer (it is better to use wired connection during router setup)
Default username and password for Linksys routers
Almost all of Linksys routers use "admin" as username and "admin" as password. If this combination doesn't work you can try "admin" as username and leave empty password field. Type http://192.168.1.1 into your browser login screen to get to the router administration interface.
Default login for TP-Link routers
Most of TP-Link routers and wireless access points use "admin" as username and "admin" as password. Type http://192.168.1.1 into your browser login screen to get to the router administration interface.