KNX 2.x binding - close connection - maximum send attempts / maximum send attempts, no service acknowledgment receive

Hi,
I am not sure, if this is a misconfiguration of my knx connection or if this issue is still discussed here in the community.

I did not have those issues with the old KNX binding. It happens around 20h to 30h of operation.
My KNX IP gateway is a Siemens N146.

Any help?

knx.thing (default)

Bridge knx:ip:bridge [ 
    ipAddress="192.168.0.8", 
    portNumber=3671, 
    localIp="192.168.0.38", 
    type="TUNNEL", 
    readingPause=50, 
    responseTimeout=10, 
    readRetriesLimit=3, 
    autoReconnectPeriod=1,
    localSourceAddr="0.0.0"

logfile

2018-03-28 02:24:15.743 [ERROR] [KNXnet/IP Tunneling 192.168.0.8:3671] - close connection - maximum send attempts
tuwien.auto.calimero.KNXAckTimeoutException: maximum send attempts, no service acknowledgment received
	at tuwien.auto.calimero.knxnetip.ConnectionBase.send(ConnectionBase.java:250) ~[?:?]
	at tuwien.auto.calimero.knxnetip.KNXnetIPTunnel.send(KNXnetIPTunnel.java:178) ~[?:?]
	at tuwien.auto.calimero.link.KNXNetworkLinkIP.onSend(KNXNetworkLinkIP.java:243) ~[?:?]
	at tuwien.auto.calimero.link.AbstractLink.send(AbstractLink.java:351) ~[?:?]
	at tuwien.auto.calimero.link.KNXNetworkLinkIP.sendRequestWait(KNXNetworkLinkIP.java:222) ~[?:?]
	at tuwien.auto.calimero.mgmt.TransportLayerImpl.sendDisconnect(TransportLayerImpl.java:612) ~[?:?]
	at tuwien.auto.calimero.mgmt.TransportLayerImpl.disconnectIndicate(TransportLayerImpl.java:600) ~[?:?]
	at tuwien.auto.calimero.mgmt.TransportLayerImpl.disconnect(TransportLayerImpl.java:342) ~[?:?]
	at tuwien.auto.calimero.mgmt.Destination.destroy(Destination.java:371) ~[?:?]
	at tuwien.auto.calimero.mgmt.Destination.close(Destination.java:383) ~[?:?]
	at tuwien.auto.calimero.mgmt.ManagementProceduresImpl.isAddressOccupied(ManagementProceduresImpl.java:311) ~[?:?]
	at org.openhab.binding.knx.internal.client.AbstractKNXClient.isReachable(AbstractKNXClient.java:338) ~[?:?]
	at org.openhab.binding.knx.handler.AbstractKNXThingHandler.pollDeviceStatus(AbstractKNXThingHandler.java:144) ~[?:?]
	at org.openhab.binding.knx.handler.AbstractKNXThingHandler.lambda$1(AbstractKNXThingHandler.java:184) ~[?:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:?]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
	at java.lang.Thread.run(Thread.java:748) [?:?]
2018-03-28 10:39:50.134 [WARN ] [eclipse.jetty.servlet.ServletHandler] - /chart
javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) [?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) [?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) [?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) [?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:317) [143:org.eclipse.smarthome.ui:0.10.0.201803241900]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [26:javax.servlet-api:3.1.0]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [26:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [77:org.eclipse.jetty.security:9.3.21.v20170918]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
Caused by: java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.writev0(Native Method) ~[?:?]
	at sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:148) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:504) ~[?:?]
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:179) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more
2018-03-28 10:39:50.150 [WARN ] [eclipse.jetty.servlet.ServletHandler] - /chart
javax.imageio.IIOException: I/O error writing PNG file!
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1168) [?:?]
	at javax.imageio.ImageWriter.write(ImageWriter.java:615) [?:?]
	at javax.imageio.ImageIO.doWrite(ImageIO.java:1612) [?:?]
	at javax.imageio.ImageIO.write(ImageIO.java:1492) [?:?]
	at org.eclipse.smarthome.ui.internal.chart.ChartServlet.doGet(ChartServlet.java:317) [143:org.eclipse.smarthome.ui:0.10.0.201803241900]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) [26:javax.servlet-api:3.1.0]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [26:javax.servlet-api:3.1.0]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceServletHandler.doHandle(HttpServiceServletHandler.java:71) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) [77:org.eclipse.jetty.security:9.3.21.v20170918]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.HttpServiceContext.doHandle(HttpServiceContext.java:284) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) [80:org.eclipse.jetty.servlet:9.3.21.v20170918]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.ops4j.pax.web.service.jetty.internal.JettyServerHandlerCollection.handle(JettyServerHandlerCollection.java:80) [179:org.ops4j.pax.web.pax-web-jetty:6.0.9]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.Server.handle(Server.java:534) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) [79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [83:org.eclipse.jetty.util:9.3.21.v20170918]
	at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.eclipse.jetty.io.EofException
	at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:199) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:313) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:147) ~[72:org.eclipse.jetty.io:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection$SendCallback.process(HttpConnection.java:739) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224) ~[83:org.eclipse.jetty.util:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpConnection.send(HttpConnection.java:519) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.sendResponse(HttpChannel.java:750) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpChannel.write(HttpChannel.java:801) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:235) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:219) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at org.eclipse.jetty.server.HttpOutput.flush(HttpOutput.java:355) ~[79:org.eclipse.jetty.server:9.3.21.v20170918]
	at javax.imageio.stream.FileCacheImageOutputStream.flushBefore(FileCacheImageOutputStream.java:258) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finishChunk(PNGImageWriter.java:196) ~[?:?]
	at com.sun.imageio.plugins.png.IDATOutputStream.finish(PNGImageWriter.java:254) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write_IDAT(PNGImageWriter.java:945) ~[?:?]
	at com.sun.imageio.plugins.png.PNGImageWriter.write(PNGImageWriter.java:1158) ~[?:?]
	... 32 more

Same errors: OH2 & KNX Binding - maximum send attempts error