Looking for logging into the Simultaneous 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 Simultaneous site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/51445188/best-way-to-prevent-simultaneous-login
http://help.smarteru.com/account-simultaneous-login-detection
https://security.stackexchange.com/questions/34880/is-it-safe-to-allow-users-multiple-login-at-different-browsers-computers
https://community.meraki.com/t5/Wireless-LAN/Re-Simultaneous-Login/td-p/7905
https://community.sophos.com/kb/fr-fr/123044
https://community.liferay.com/forums/-/message_boards/message/32612361
https://forum.mendixcloud.com/link/questions/90675
https://help.zoho.com/portal/community/topic/is-multiple-simultaneous-login-possible
https://businessforum.zyxel.com/discussion/742/simultaneous-login
https://meraki.cisco.com/blog/2009/03/preventing-multiple-simultaneous-logins-on-a-single-account/
https://www.untis.at/HTML/WebHelp/uk/untis/mugleichzeitiger_login.htm
https://docs.oracle.com/cd/E98457_01/opera_5_6_core_help/audit_simultaneous_login_help.htm
https://github.com/userfrosting/UserFrosting/issues/219