Connection terminated

Just done a lean install of FR24 feeder on my windows 7 pc, the FR24 is the latest version downloaded from Flightradar. The initial set up went ok and it starts to communicate with the dvb stick but the i gaet the terminated message.

When i 1st put the stick in it started to automatically install but I interrupted the process. I suspect something else is causing a conflict, I cant see anything in device driver. Can anyone advise please?

LP