CustomAuthentication" was challenged

[pixel24]

Hi@all,

I constantly get this message in the logfile of Jellyfin:

root@media01:~# tail -f /var/log/jellyfin/jellyfin20231019.log  
[2023-10-19 10:17:11.927 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:12.921 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:13.951 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:13.951 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:15.038 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:16.975 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:17.973 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.
[2023-10-19 10:17:19.100 +02:00] [INF] AuthenticationScheme: "CustomAuthentication" was challenged.

My Jellyfin is attached to the LDAP server (Samba ADS). Login etc works except for a strange behavior with "AC/DC" (other post).

What does the message mean and how can I fix it?

with best
pixel24