Hey @tweed77,
Thank you for the screenshots and the extracted log snippets. This clarifies the situation.
- On Volumio 3.832 the Fritzbox server appears under Media Servers, and browsing continues correctly down to the USB contents. The log shows repeated
handleBrowseUricalls with valid responses. - On Volumio 4.025, selecting Media Servers still calls
handleBrowseUri, but the result is empty. The Fritzbox server is not listed at all.
That means the problem is not with your Fritzbox or SMB credentials, but with UPnP/DLNA discovery in Volumio 4.x. In other words:
- Volumio 3.x: upmpdcli + upnp_browser detect Fritzbox fine.
- Volumio 4.x: upnp_browser plugin calls succeed but return no servers.
The missing piece now is a full system log link from Volumio 4.025 right after you reproduce this (click “Media Servers” so it fails, then go to http://<volumio-ip>/dev, press “Send log”, and paste the URL). The short snippet you shared shows the symptom but not the backend discovery messages, which are needed to see whether gmediarender/upmpdcli are running and responding.
As requested before - Could you generate and share that full log URL from the failing Volumio 4.025 case? That will allow a diagnosis.
Kind Regards,