Bad codes and z-wave occasional failure

It works some of the time!!
But in the log I get:

08 03/01/13 17:11:51.673 JobHandler_LuaUPnP::HandleActionRequest device: 23 service: urn:micasaverde-com:serviceId:IrTransmitter1 action: SendProntoCode <0x2badf680>

02 03/01/13 17:13:05.536 ZWJob_SendData::ReceivedFrame job job#268 :OFF node 21 (0xb48f78) N:21 P:70 S:5 to node 21 command 32/1 failed m_cTxStatus 1 retries 4 <0x2badf680>
02 03/01/13 17:13:05.debug2: channel 0: window 998066 sent adjust 50510

I assume that’s just z-wave failing. Occasionally see a ‘transmit failure’ in the UI.
The module relative to the verde isn’t far away at all ; with no walls in-between. The simple lamp dimmer module is in the same location and hasn’t failed once.
Repaired the z mesh network all components get a 5/5.

What else should I check???
If it’s not reliable then might aswell have X10! :‘( :’( :cry:

06 03/01/13 17:20:21.036 Device_Variable::m_szValue_set device: 1 service: urn:micasaverde-com:serviceId:ZWaveNetwork1 variable: LastError was: Poll failed now: Node 21 failed #hooks: 0 upnp: 0 v:0xb01070/NONE duplicate:0 <0x2badf680>
02 03/01/13 17:20:21.037 ZWJob_SendData::ReceivedFrame job job#298 :ON node 21 (0xa6faf0) N:21 P:35 S:5 to node 21 command 32/1 failed m_cTxStatus 1 retries 0 <0x2badf680>
02 03/01/13 17:20:21.039 UPDATE MANUAL ROUTE2 21=(nil) <0x2bedf680>
02 03/01/13 17:20:21.039 ZW_Send_Data node 21 NO ROUTE (nil) <0x2bedf680>
02 03/01/13 17:20:21.246 ZWJob_SendData::ReceivedFrame job job#298 :ON node 21 (0xa6faf0) N:21 P:70 S:5 to node 21 command 32/1 failed m_cTxStatus 1 retries 1

Hmmmmmmm!