Looking for logging into the Windows Server 2012 The Method Is Not Allowed 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 Windows Server 2012 The Method Is Not Allowed site. After that you can login as usual with your login credentials.
https://social.technet.microsoft.com/Forums/de-DE/c4baed04-d5d7-40c4-8c48-dce10323daa5/the-signin-method-youre-trying-to-use-isnt-allowed?forum=winserveressentials
https://community.spiceworks.com/topic/1259871-sign-in-method-you-re-trying-to-use-isnt-allowed
https://www.top-password.com/blog/fix-the-sign-in-method-youre-trying-to-use-isnt-allowed/
https://www.experts-exchange.com/questions/29017006/The-sign-in-method-you're-trying-to-use-isn't-allowed-for-more-info-contact-your-network-administrator-and-Can't-logon-because-the-logon-method-you-are-using-is-not-allowed-on-this-computer.html
http://wertyizz.blogspot.com/2017/05/the-sign-in-method-youre-trying-to-use.html
https://serverfault.com/questions/207876/domain-users-not-able-to-logon
https://forums.techguy.org/threads/login-method-is-not-allowed-i-need-help.1158446/
https://www.reddit.com/r/techsupport/comments/554t2u/the_sign_in_method_youre_trying_to_use_isnt/
https://forums.tomshardware.com/threads/i-cant-log-in-because-my-logon-method-is-not-allowed.1232612/
https://4sysops.com/archives/deny-and-allow-workstation-logons-with-group-policy/
https://help.duo.com/s/article/1093
https://www.petri.com/forums/forum/server-operating-systems/windows-server-2008-2008-r2/55082-windows-2008-r2-cannot-access-network-shares-by-namespace?p=384715
https://www.sevenforums.com/general-discussion/98018-logon-method-not-allowed-suddenly.html