Android devices in different vlan

[Jpetrov85]

Plan

Premium

Country

Germany 

Device

LG G5, Samsung Galaxy S7, iPhone SE, Windows, Onkyo audio system 

Operating System

Android 8.0.0, Windows 10 Pro

My Question or Issue

 I have problem with the app over all androids devices at my home network. My wifi is in different vlan and the devices that supported Spotify in different one too. All Windows and iOS devices can find without any problem them, but the android not. Over the firewall the broadcast over vlan is allaud. When I select over the iOS or Windows my onkyo system, the music is starting to play and then they the onkyo is available on the android devices too.