Media Scan dont work completly

[zakalwe]

Hi, I'm having a problem where the media scan is only working to a limited extent.
The server is running Windows 11, and the media is distributed across an older QNAP NAS that still has a USB HDD attached, the HDD/SSD of the laptop running the server, and an HDD in a Dreambox DM900.
The USB HDD scan no longer works at all. It doesn't matter whether it's done manually or automatically every 15 minutes. Under Advanced -> Scheduled Tasks, the library scan is set to "fail." When I manually initiate the scan, it completes in less than 1 second, which is far too short to scan dozens of directories on three different systems.
What's my problem?
Thanks for your support

[TheDreadPirate]

Can you share your jellyfin logs via privatebin.net?

[zakalwe]

Sure, i've send you a PM.
I'm now having the same problem on the NAS server itself. A file I added yesterday is still not visible today. Despite scanning it multiple times and restarting the server several times.

[TheDreadPirate]

Which drive is the USB drive attached to your NAS? The T drive?

Code:

System.IO.IOException: Sie können nicht auf diesen freigegebenen Ordner zugreifen, weil der Zugriff nicht authentifizierter Gäste durch die Sicherheitsrichtlinien Ihrer Organisation blockiert werden. Diese Richtlinien helfen, Ihren PC vor unsicheren oder bösartigen Geräten im Netzwerk zu schützen. : 'T:\'

For the English speakers following along.

Code:

System.IO.IOException: You cannot access this shared folder because your organization's security policies block access to unauthenticated guests. These policies help protect your PC from unsafe or malicious devices on the network. : 'T:\'

[zakalwe]

No, drive T is the HHD in the Dreambox, which is not all the time online, only when we watch TV.
The USB HDD is Drive X.
However, nfo files and chapter images are stored in the directory on drive x, but you can't see them in the clients.

[TheDreadPirate]

Well, the X Drive is also unavailable.

Code:

[2025-03-23 02:57:33.391 +01:00] [ERR] [21] Emby.Server.Implementations.IO.LibraryMonitor: Error in Directory watcher for: "X:\Serien"
System.ComponentModel.Win32Exception (64): Der angegebene Netzwerkname ist nicht mehr verfügbar.

Same with Y and Z.

Code:

[2025-03-23 22:12:58.052 +01:00] [ERR] [15] Emby.Server.Implementations.IO.LibraryMonitor: Error in Directory watcher for: "Y:\Musik"
System.ComponentModel.Win32Exception (64): Der angegebene Netzwerkname ist nicht mehr verfügbar.
......
[2025-03-23 18:44:01.423 +01:00] [ERR] [21] Emby.Server.Implementations.IO.LibraryMonitor: Error in Directory watcher for: "Z:\vids\Dokus"
System.ComponentModel.Win32Exception (64): Der angegebene Netzwerkname ist nicht mehr verfügbar.

Definitely a lot going wrong.