Can not connect to home router on 192.168.1.1

Hi guys,

    I can not connect to my home router via the standard IP 192.168.1.1. It does not even show an error message. I have looked up to this site: http://19216811.help/ but did not find much. Also there were other sites like http://19216811.help/192-168-1-254/ so it is possible that my router can have a different IP than the standard one? How can I be sure of the router IP?

Thank you for help

Johny