Help with Bind LightwaveRF Link

Hi all,
New to OpenHAB and the first thing I am trying is failing. Bind my LightwaveRF Lighwave Link.
My issue is VERY similar to:

Each time I Start the OpenHAB server I get:
2016-10-22 15:16:54.119 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message not received for 100,!F*p
, retrying again. Retry count 2

My config is:
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: IP[255.255.255.255]
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: ReceivePort[9761]
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: Send Port[9760]
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: Register On Startup[true]
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: Send Delay [2000]
2016-10-22 15:16:51.071 [INFO ] [.l.internal.LightwaveRfBinding] - LightwaveBinding: Timeout for Ok Messages [3000]

I have tried:

  • Direct IP for the Link / Broadcast IP
  • Swapping Tx/Rx ports
  • Firewall is turned off on PC (Windows 10), that is currently hosting the server.

I’m running out of hair to pull out - suggestions lovingly received.

thanks
Gavin