Hi, I am trying to get some apps to talk to a seconday pa server, and redirect the output of that server to another (ie: the regular pa server on my machine) using pactl when desired, and fallback to null-sink when not present. I start the new server with: pulseaudio -n --start -vvvv --daemonize=false --system=false --use-pid-file=false --exit-idle-time=-1 --load=module-null-sink --load=module-rescue-streams "--load=module-native-protocol-unix socket=/tmp/testpulse" So far, so good. I can play files - they just get sent to /dev/null Now, when I try to tell this new server to add a new sink which points to my existing pa server (which I also tested, and also works fine on its own), I use: pactl -s /tmp/testpulse load-module module-tunnel-sink server=unix:/tmp/pulse-sJWIUwdZZeny/native sink_name=pulse_main Unfortunately, the new pa server seems to get into a spin: I: sink.c: Created sink 1 "pulse_main" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right I: source.c: Created source 1 "pulse_main.monitor" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right D: module-tunnel.c: Thread starting up D: rtpoll.c: Acquired POSIX realtime signal SIGRTMIN+28 I: module.c: Loaded "module-tunnel-sink" (index: #3; argument: "server=unix:/tmp/pulse-sJWIUwdZZeny/native sink_name=pulse_main"). D: module-tunnel.c: Connection established, authenticating ... D: module-tunnel.c: Protocol version: remote 14, local 14 D: module-tunnel.c: Connection authenticated, creating stream ... I: client.c: Freed 0 "pactl" I: protocol-native.c: Connection died. D: module-tunnel.c: Stream created. D: module-tunnel.c: Server reports playback started. I: module-tunnel.c: Server signalled buffer overrun/underrun. D: module-tunnel.c: Server reports playback started. I: module-tunnel.c: Server signalled buffer overrun/underrun. [repeated hundreds of times] D: module-tunnel.c: Server reports playback started. I: module-tunnel.c: Server signalled buffer overrun/underrun. W: module-tunnel.c: Stream died. I: module.c: Unloading "module-tunnel-sink" (index: #3). D: module-rescue-streams.c: No sink inputs to move away. D: module-rescue-streams.c: No source outputs to move away. D: module-tunnel.c: Thread shutting down I: sink.c: Freeing sink 1 "pulse_main" I: source.c: Freeing source 1 "pulse_main.monitor" I: module.c: Unloaded "module-tunnel-sink" (index: #3). Am I missing something obvious? I thought the module-tunnels-sink should be straightforward to enable, ultimately I want to use it through a vpn/tunnel, but if I can't get it to work with plain unix sockets... there's not point in even trying that is there? Thanks Antoine