Looking for logging into the Duplicate 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 Duplicate site. After that you can login as usual with your login credentials.
http://forums.runicgames.com/discussion/58243/solved-duplicate-login
https://steamcommunity.com/app/200710/discussions/0/864946409172463555/?l=portuguese
https://www.reddit.com/r/archeage/comments/5siluu/how_to_fix_duplicate_login_error/
https://answers.microsoft.com/en-us/windows/forum/all/sos-duplicate-login/17689366-838e-4452-86a8-93b578e95961
http://forums.archeagegame.com/showthread.php?17729-Login-failed-duplicate-login.-Verify-login
http://forum.dragonnest.com/sea/support-aa/technical-issue/119129-duplicate-login
https://www.tripadvisor.com/ShowTopic-g1-i12105-k12054861-Help_I_seem_to_have_a_duplicate_login-TripAdvisor_Support.html
https://twitter.com/runicgames/status/249216951350603776
https://www.google.com/patents/WO2016114566A1?cl=en
https://wordpress.org/support/topic-tag/duplicate-login/
https://community.cisco.com/t5/collaboration-documents/duplicate-login-attempts/m-p/3619786
https://bugs.launchpad.net/bugs/1755887
https://community.spiceworks.com/topic/2118544-windows-8-1-duplicate-login-users