After several weeks or even month of working flawlessly my openhab zwave network stops working.
New message are not sent to the nodes, but stay in the queue.
The log looks like this:
2018-06-04 23:16:36.227 [DEBUG] [erter.ZWaveMultiLevelSensorConverter] - NODE 15: Generating poll message for SENSOR_MULTILEVEL, endpoint 0
2018-06-04 23:16:36.229 [DEBUG] [ss.ZWaveMultiLevelSensorCommandClass] - NODE 15: Creating new message for command SENSOR_MULTI_LEVEL_GET
2018-06-04 23:16:36.232 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 15: Polling zwave:device:f057dadd:node15:meter_watts
2018-06-04 23:16:36.234 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 15: Generating poll message for METER, endpoint 0
2018-06-04 23:16:36.236 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 15: Generating poll message for METER, endpoint 0
2018-06-04 23:16:36.239 [DEBUG] [.commandclass.ZWaveMeterCommandClass] - NODE 15: Creating new message for application command METER_GET
2018-06-04 23:16:36.241 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 15: Polling zwave:device:f057dadd:node15:meter_kwh
2018-06-04 23:16:36.244 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 15: Generating poll message for METER, endpoint 0
2018-06-04 23:16:36.246 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 15: Generating poll message for METER, endpoint 0
2018-06-04 23:16:36.248 [DEBUG] [.commandclass.ZWaveMeterCommandClass] - NODE 15: Creating new message for application command METER_GET
2018-06-04 23:16:36.252 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1. Queue={}
2018-06-04 23:16:36.252 [DEBUG] [ocol.ZWaveController$ZWaveSendThread] - Took message from queue for sending. Queue length = 0
2018-06-04 23:16:36.254 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1. Queue={}
2018-06-04 23:16:36.256 [DEBUG] [wave.internal.protocol.SerialMessage] - Assembled message buffer = 01 09 00 13 0F 02 25 02 25 4A A0
2018-06-04 23:16:36.257 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 2. Queue={}
2018-06-04 23:16:36.258 [DEBUG] [ing.zwave.handler.ZWaveSerialHandler] - NODE 15: Sending REQUEST Message = 01 09 00 13 0F 02 25 02 25 4A A0
2018-06-04 23:16:36.259 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 3. Queue={}
2018-06-04 23:16:36.262 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 4. Queue={}
2018-06-04 23:16:36.265 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 5. Queue={}
2018-06-04 23:16:36.267 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 6. Queue={}
2018-06-04 23:16:36.272 [DEBUG] [WaveSerialHandler$ZWaveReceiveThread] - Receive Message = 01 04 01 13 01 E8
2018-06-04 23:16:41.263 [DEBUG] [wave.internal.protocol.SerialMessage] - Assembled message buffer = 01 03 00 16 EA
2018-06-04 23:16:41.267 [DEBUG] [ocol.ZWaveController$ZWaveSendThread] - NODE 15: Sending ABORT Message = 01 03 00 16 EA
2018-06-04 23:16:41.270 [DEBUG] [wave.internal.protocol.SerialMessage] - Assembled message buffer = 01 03 00 16 EA
2018-06-04 23:16:41.274 [DEBUG] [ing.zwave.handler.ZWaveSerialHandler] - NODE 255: Sending REQUEST Message = 01 03 00 16 EA
2018-06-04 23:16:55.596 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 11: Polling...
2018-06-04 23:16:55.601 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 11: Polling zwave:device:f057dadd:node11:switch_binary
2018-06-04 23:16:55.604 [DEBUG] [converter.ZWaveBinarySwitchConverter] - NODE 11: Generating poll message for SWITCH_BINARY, endpoint 0
2018-06-04 23:16:55.607 [DEBUG] [dclass.ZWaveBinarySwitchCommandClass] - NODE 11: Creating new message for application command SWITCH_BINARY_GET
2018-06-04 23:16:55.618 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 11: Polling zwave:device:f057dadd:node11:blinds_control
2018-06-04 23:16:55.621 [DEBUG] [erter.ZWaveMultiLevelSwitchConverter] - NODE 11: Generating poll message for SWITCH_MULTILEVEL, endpoint 0
2018-06-04 23:16:55.623 [DEBUG] [ss.ZWaveMultiLevelSwitchCommandClass] - NODE 11: Creating new message for command SWITCH_MULTILEVEL_GET
2018-06-04 23:16:55.626 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 11: Polling zwave:device:f057dadd:node11:blinds_control
2018-06-04 23:16:55.629 [DEBUG] [erter.ZWaveMultiLevelSwitchConverter] - NODE 11: Generating poll message for SWITCH_MULTILEVEL, endpoint 0
2018-06-04 23:16:55.635 [DEBUG] [ss.ZWaveMultiLevelSwitchCommandClass] - NODE 11: Creating new message for command SWITCH_MULTILEVEL_GET
....
2018-06-05 04:53:16.601 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 7: Polling zwave:device:f057dadd:node7:meter_watts
2018-06-05 04:53:16.606 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 7: Generating poll message for METER, endpoint 0
2018-06-05 04:53:16.611 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 7: Generating poll message for METER, endpoint 0
2018-06-05 04:53:16.625 [DEBUG] [.commandclass.ZWaveMeterCommandClass] - NODE 7: Creating new message for application command METER_GET
2018-06-05 04:53:16.631 [DEBUG] [ding.zwave.handler.ZWaveThingHandler] - NODE 7: Polling zwave:device:f057dadd:node7:meter_kwh
2018-06-05 04:53:16.637 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 7: Generating poll message for METER, endpoint 0
2018-06-05 04:53:16.647 [DEBUG] [ternal.converter.ZWaveMeterConverter] - NODE 7: Generating poll message for METER, endpoint 0
2018-06-05 04:53:16.653 [DEBUG] [.commandclass.ZWaveMeterCommandClass] - NODE 7: Creating new message for application command METER_GET
2018-06-05 04:53:16.662 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1273. Queue={}
2018-06-05 04:53:16.669 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1274. Queue={}
2018-06-05 04:53:16.675 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1275. Queue={}
2018-06-05 04:53:16.682 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1276. Queue={}
2018-06-05 04:53:16.690 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1277. Queue={}
2018-06-05 04:53:16.697 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1278. Queue={}
2018-06-05 04:53:16.703 [DEBUG] [ve.internal.protocol.ZWaveController] - Message queued. Queue length = 1279. Queue={}
The only way to get the problem fixed so far is restarting the system. Any ideas on that?