Looking for logging into the Ubuntu Loop 15.10 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 Ubuntu Loop 15.10 site. After that you can login as usual with your login credentials.
https://askubuntu.com/questions/716942/login-loop-on-ubuntu-15-10
https://askubuntu.com/questions/711068/ubuntu-15-10-login-loop-for-all-users?rq=1
https://ubuntuforums.org/showthread.php?t=2308617
https://www.computersnyou.com/4947/how-to-solve-ubuntu-login-loop-quick-tip/
https://www.maketecheasier.com/fix-ubuntu-login-loop/
https://rgriggs1.wordpress.com/2016/01/14/password-login-loop-ubuntu-15-10/
https://seravo.fi/2015/fixing-black-screen-after-login-in-ubuntu-14-04
https://itsfoss.com/fix-unable-login-ubuntu/
https://forum.ubuntu-gr.org/viewtopic.php?f=45&t=31874
https://bugs.launchpad.net/bugs/1500673
https://www.reddit.com/r/SurfaceLinux/comments/4f2pgi/sp3_ubuntu_1510_fresh_install_login_loop/
http://www.beginninglinux.com/home/troubleshoot/ubuntu-does-not-start-gui-or-login-loop
https://www.linuxslaves.com/2016/05/3-ways-fix-ubuntu-gets-stuck-login-loop.html