No sound on Raspbian with forwarded Ports

[c0wtschpotato]

Hello,

i try to forward the sound from my win10 destkop to the network and play it from different Pis.
Current setup looks like this: Win10 VoiceMeter VBAN -> Outgoing Stream to 192.168.0.51 (Router) -> Router forwards 6980 to 192.168.1.108 (Pi). I installed VBAN with disable-jack and disable-pluseaudio. ALSA Speaker-test works fine on the connected TV

I tried a bunch of different parameters when starting but cant get it to work.
vban_receptor -i 192.168.1.1 -p 6980 -b alsa -l 4 -s Stream1 -c1 (Note: 192.168.1.1 is the Routers IP in the 1 Subnet)
vban_receptor version 2.1.0

Info: socket_open: opening socket with port 6980
Info: socket_open with port: 6980
Info: audio_init: config is direction out, backend alsa, device , buffer size 3072
Info: audio_backend_get_by_name: found backend alsa
Info: audio_set_map_config: new map config is nb channels 1
Debug: socket_read invoked
Debug: socket_read ip 192.168.1.101

Debug log realy doesnt tell you much, not throwing any errors since its not making any plausibility or connectivity checks. (like you can input IPs like 192.168.1.666 and its just fine with that)
With the Android lite App i get it to work as soon as i forward to my phones IP. I cant tell if its a problem with output or with connecting, but i assume its the connection since alsa seems to work.

[quiniouben]

Hi sorry for the late reply, and thank you for your report.
Then things look like if no data is received.
I just checked the implementation of the receptor: it tries to bind to the ip + port. I don't think it should be a problem in a routed situation, but I will double check this.

[Slaviusz]

Have you ever found a solution or at least the cause? I'm currently facing what seems the same situation.

I have a Windows PC with Banana Mixer with VBAN enabled and configured and I'm trying to stream 2ch 44.1kHz audio to RPi (3B) over wifi. I disabled Windows firewall and I'm able to ping both hosts using IP addresses. When I run vban_receiver with debug log I only see socket_read_invoked as you see but no stream is playing.
I tried to capture traffic on RPi using tcpdump but there's absolutely nothing transmitted.
When I try vban_sendtext I can see packets sent from RPi over UDP to destination IP and correct port but they don't appear in VBAN Chatt app on the Windows PC.

Any other ideas?