roonbridge安装后没有发现设备的问题

cvip

我的是一个AKUBOX小音箱，是全志CPU，装了linux，再安装了roonbridge，但在roon音频设置里没有发现音频设备。在同一局域网，其他roon音频设备能正常发现。这个小音箱安装shairport-sync能被ROON发现，安装dlna发现不了。我猜测是不是roonbridge没有找到音频播放设备。但shairport-sync播放是正常的，声卡是sun4icodec。日志，有哪位有经验吗？
journalctl -f -u roonbridge                    
Jul 16 07:33:28 akubox start.sh[166]: 00:15:55.053 Info:  ConnectOrStartAndWaitForExit RAATServer, path: /opt/RoonBridge/Bridge/RAATServer
Jul 16 07:33:28 akubox start.sh[166]: Running
Jul 16 07:33:34 akubox start.sh[166]: 00:16:01.075 Warn:  exception starting raatserver: System.Net.Sockets.SocketException (0x80004005): Connection refused
Jul 16 07:33:34 akubox start.sh[166]:   at System.Net.Sockets.TcpClient..ctor (System.String hostname, System.Int32 port) [0x0006d] in <ef2b8cc0336c473382f0e9112dd3c795>:0
Jul 16 07:33:34 akubox start.sh[166]:   at Sooloos.RAATServer.ConnectOrStartAndWaitForExit (System.String path, System.String args, System.Action`1[T] status, Base.ChildProcess& p) [0x00165] in <c3e2d33b54f34224bdf8da1e4595ee94>:0
Jul 16 07:33:34 akubox start.sh[166]: 00:16:01.075 Debug: PathForResource, filename: ../.update
Jul 16 07:33:34 akubox start.sh[166]: 00:16:01.075 Debug: PathForResource, candidate: /opt/RoonBridge/Bridge/../.update
Jul 16 07:33:34 akubox start.sh[166]: Not Running (.o)
Jul 16 07:33:36 akubox start.sh[166]: 00:16:03.076 Info:  ConnectOrStartAndWaitForExit RAATServer, path: /opt/RoonBridge/Bridge/RAATServer
Jul 16 07:33:36 akubox start.sh[166]: Running

qqq8

确认roonbridge安装没问题的话，可以检查一下防火墙，把它关掉试试。