Error logs all night without any playing activity from "GetSpecificMappingAsync"

[Chobimera 0]

My Emby server on Synology reports error messages from "GetSpecificMappingAsync" all night without any playing activity happening and continues to do so even during playback.
Is there any setting I have missed to make these disappear?

Today's log is attached.

TA Chobi

embyserver_2025-11-30.txt

[GrimReaper 4739]

1 hour ago, Chobimera said:

Is there any setting I have missed to make these disappear?

Disable "Enable automatic port mapping" in your server Network settings. 

Error you're seeing just means that the server's automatic port mapping feature is not working correctly with your router.

[Chobimera 0]

Thanks, this solved the error messages.

Is there anything I could do on my router to make this work with the above enabled?
Or does it not matter at all?

[GrimReaper 4739]

1 hour ago, Chobimera said:

Or does it not matter at all?

If you're doing port forwarding manually (which I'd recommend anyway), you can safely ignore/keep Port Mapper toggled off (or plugin removed altogether). 

[Chobimera 0]

Okay thanks.