Jellyfin.Api.Auth.CustomAuthenticationHandler: CustomAuthentication was not authentic

[m3z]

Hi TheDreadPirate

and thanks you for your help.
Yes your right, there is an nginx server featured with swizzin that works as reverse proxy.

Here is the setup for jellyfin

location /jellyfin {
proxy_pass https://127.0.0.1:8920;
#
proxy_pass_request_headers on;
#
proxy_set_header Host \$proxy_host;
#
proxy_http_version 1.1;
#
proxy_set_header X-Real-IP \$remote_addr;
proxy_set_header X-Forwarded-For \$proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto \$scheme;
proxy_set_header X-Forwarded-Protocol \$scheme;
proxy_set_header X-Forwarded-Host \$http_host;
#
proxy_set_header Upgrade \$http_upgrade;
proxy_set_header Connection \$http_connection;
#
proxy_set_header X-Forwarded-Ssl on;
#
proxy_redirect off;
proxy_buffering off;
auth_basic off;
}