Error "All configured authentication methods failed"

Icinga Web
16

I don’t like black magic at least at software problems :wink:

That’s the version information:

icinga2 - The Icinga 2 network monitoring daemon (version: r2.6.3-1)

Copyright (c) 2012-2017 Icinga Development Team (https://www.icinga.com/)
License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl2.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Application information:
  Installation root: /usr
  Sysconf directory: /etc
  Run directory: /run
  Local state directory: /var
  Package data directory: /usr/share/icinga2
  State path: /var/lib/icinga2/icinga2.state
  Modified attributes path: /var/lib/icinga2/modified-attributes.conf
  Objects path: /var/cache/icinga2/icinga2.debug
  Vars path: /var/cache/icinga2/icinga2.vars
  PID path: /run/icinga2/icinga2.pid

System information:
  Platform: Ubuntu
  Platform version: 16.04.6 LTS (Xenial Xerus)
  Kernel: Linux
  Kernel version: 4.4.0-146-generic
  Architecture: x86_64

Build information:
  Compiler: GNU 4.8.4
  Build host: lgw01-43