Volumio 3 Spotify connect issue

Hi all,
I have an x86 installation which is working fine.
The PC is connected to lan and is also accessible through WiFi.
Tidal is configured and working fine.
Spotify Connect however, is not functional.
I have installed and configured the plugin but Volumio is not visible to Spotify.
Only if I disconnect from the Lan and have Volumio ran solely on WiFi will it function properly.