[LAU] Unable to stream audio with Jack

I've been struggling for the past week to do the most basic task with Jack NetDriver. I have 3 machines connected over a LAN. The speakers are on an Ubuntu 14.4 box and a Windows box, while the audio source is connected to the line-in of a Windows box. So far it seems like Jack is connecting, but I can't get either box to output any audio. JACK slave (on speaker-PC) Ubuntu: $ jackd -R -d alsa -P -r 48000 -S $ jack_load netadapter -i '-C 2' $ jack_connect netadapter:capture_1 system:playback_1 $ jack_connect netadapter:capture_2 system:playback_2 JACK slave (on speaker-PC) Windows 7: C: jackd.exe -R -S -d net C: jack_load netadapter C: jack_connect netadapter:capture_1 system:playback_1 C: jack_connect netadapter:capture_2 system:playback_2 JACK slave (on speaker-PC) Windows 7: C: jackd.exe -R -S -d portaudio "ASIO::ASIO4ALL v2" C: jack_load netadapter In JackControl connect linein1->slave1 In JackControl connect linein2->slave2 In JackControl press the play button Results neither of my slaves play any audio. And I get error messages like this: **************** Network parameters **************** Name : luke2-win7 Protocol revision : 8 MTU : 1500 Master name : opteron-PC Slave name : luke2-win7 ID : 1 Transport Sync : no Send channels (audio - midi) : 8 - 0 Return channels (audio - midi) : 2 - 0 Sample rate : 48000 frames per second Period size : 1024 frames per period Network latency : 5 cycles SampleEncoder : Float Slave mode : sync **************************************************** Recv connection lost error Driver is restarted MMCSS API not used... JackTimedDriver::Process XRun = 145 usec Restarting driver... NetDriver started in sync mode without Master's transport sync. Waiting for a master... Initializing connection with opteron-PC... **************** Network parameters **************** Name : luke2-win7 Protocol revision : 8 MTU : 1500 Master name : opteron-PC Slave name : luke2-win7 ID : 1 Transport Sync : no Send channels (audio - midi) : 8 - 0 Return channels (audio - midi) : 2 - 0 Sample rate : 48000 frames per second Period size : 1024 frames per period Network latency : 5 cycles SampleEncoder : Float Slave mode : sync **************************************************** Wrong packet type : a NetSlave : missing last data packet ... Wrong packet type : a NetSlave : missing last data packet Wrong packet type : a Can any Pro's help a total beginner out?