Looking for logging into the Bluestacks Problem 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 Bluestacks Problem site. After that you can login as usual with your login credentials.
https://support.bluestacks.com/hc/en-us/articles/208255433-What-should-I-do-if-I-cannot-login-sign-in-on-BlueStacks-
https://support.bluestacks.com/hc/de/articles/115003450363-Fehlerbehebung-bei-Problemen-mit-Google-Login
https://support.bluestacks.com/hc/de/articles/360006962552-Fehlerbehebung-bei-Problemen-mit-Google-Login-in-BlueStacks
https://support.bluestacks.com/hc/de/articles/360006677152-Workaround-f%C3%BCr-Anmeldeprobleme-aufgrund-von-Netzwerkverbindungsfehler-oder-Problemen-bei-der-Verbindung-mit-Google-Servern
https://support.bluestacks.com/hc/en-us/articles/209314786-Solution-for-Authentication-is-required-You-need-to-sign-into-your-Google-Account-
https://www.youtube.com/watch?v=yNluMRK1wi0
https://www.youtube.com/watch?v=cMI1uqUI3Pg
https://www.youtube.com/watch?v=wU3i0G6CrOI
https://www.youtube.com/watch?v=PDtbqDDNaHU
https://www.reddit.com/r/BlueStacks/comments/8g1eo8/couldnt_sign_in_problem_when_trying_to/
https://www.youtube.com/watch?v=t8SiK0ziRnQ
https://windowsreport.com/bluestacks-failed-connect-server-windows-10/