Could you please see below and advise? I accidentaly deleted my host when trying to resolve the same problem as reported in topic “Jellyfin and Plex both failing to transcode” and now I am unable to add it again.
Unable to add Jellyfin host to Yatse, process ends with a message “Unable to get server version (…)”. Jellyfin has BaseURL configured but it worked well with Yatse until I accidentaly removed the host. When it worked the value from BaseURL parameter of Jellyfin was set in advanced host settings in Yatse as subpath. When adding new Jellyfin host I do not see any field to put the subpath - as far as I remeber advanced host settings are available only after successfully adding host. I am able to access the server both locally and over internet with web browser or Jeyllyfin Android app.