Looking for logging into the Spnego Failed 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 Spnego Failed site. After that you can login as usual with your login credentials.
https://lists.samba.org/archive/samba/2017-September/210728.html
https://ubuntuforums.org/showthread.php%3Ft%3D1501277
https://bugzilla.redhat.com/show_bug.cgi%3Fid%3D1388589
https://forums.linuxmint.com/viewtopic.php%3Ft%3D239775
https://www.linuxquestions.org/questions/linux-networking-3/adding-a-shared-printer-spnego-login-failed-logon-failure-unknown-option-4175581458/
https://archive.sap.com/discussions/thread/1835146
http://www.google.de/url?url=http://www.backupcentral.com/forum/16/204509/spnego_login_failed__invalid_parameter
https://lists.fedorahosted.org/archives/list/sssd-users%40lists.fedorahosted.org/thread/KVU5X3B3QNZV6HLCKGWWGB6VCVOKO7UP/
https://community.netapp.com/t5/Network-Storage-Protocols-Discussions/samba-3-6-23-30-on-CentOS-gt-error-in-smbclient/td-p/118268
https://social.technet.microsoft.com/Forums/ie/en-US/8249ad4c-69aa-41ba-8863-8ecd7a7a4d27/samba-share-password-refused%3Fforum%3Dwin10itpronetworking
https://forums.opensuse.org/showthread.php/489670
https://help.univention.com/t/ucs-4-3-samba-4-7-probleme-beim-authentizieren-war-anderungen-bei-ntlm/8373/32
https://groups.google.com/d/topic/linux.samba/OcKk66GTsxw