Looking for logging into the 10.11 12 site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the 10.11 12 site. After that you can login as usual with your login credentials.
https://db-ip.com/all/10.11.12
https://www.proxydocker.com/en/routerpassword/10.11.12.1
https://discussions.apple.com/thread/7385469
https://apple.stackexchange.com/questions/221839/cant-login-with-google-using-internet-accounts
https://www.digitaltrends.com/computing/14-problems-mac-os-x-10-11-el-capitan-fix/
https://medium.com/@victorleungtw/enable-automatic-login-for-os-x-el-capitan-4166b613591d
https://www.amsys.co.uk/lock-your-computer-screen-instantly-in-osx-el-capitan/
http://osxdaily.com/2015/11/02/customize-login-screen-wallpaper-os-x-el-capitan/
https://www.howtogeek.com/howto/29503/how-to-change-the-logon-background-in-os-x/
https://community.spiceworks.com/topic/1503249-how-to-configure-wireless-at-login-on-el-capitan
http://avid.force.com/pkb/articles/en_US/Troubleshooting/Optimize-10-11
https://forums.macrumors.com/threads/cant-sign-in-to-imessage-in-10-11-4.1962799/
https://forums.macrumors.com/threads/automatic-login-not-working.1752208/