what shows in WD under view, debug info and under view, program event log,when its started up?
the missing error on close is a windows problem…a search of the forum should show a solution
Windows Device Manager under Ports says that the Silicon Labs CP210x USB to UART Bridge is on COM7
The comport is set to 7 under Control Panel, Station Settings, COM/IP Port
The Green light is flashing but next to it it says Data Received 0
Below it the light is red
what is the barometer offset in WD set to and what is the barometer reading showing on the Davis console
also if you set in WD to use the altimeter barometer in the CWOP setup
then try unticking that
then restart WD
note that it’s a barometer offset
having an offset of 1021 will try and add 1021 hpa to the current barometer reading
and so then WD will ignore the data
the offset you set needs to be the difference between your barometer reading on your weather station and your local metar
e.g if metar is reading 5 hpa higher than your reading, then the offset you set is 5