Why does 192.168.ll not work?
IP addresses use numbers only. In 192.168.ll, the last two characters are letters, not numbers.
The correct address
http://192.168.1.1 - all numbers, no letters.
192.168.ll — You typed L instead of 1!
192.168.ll is not a valid IP address. The letters L (l) and the number 1 look similar but are different. The correct address is 192.168.1.1.