Guys, I'm new here and I'm sorry if I'm starting off on the wrong foot or in the wrong area but I'm having the same issue as DKW. I just purchased a Q500 4K...it has an available port but is not connecting to GUI. I've downloaded and installed the GUI, downloaded the VCP Driver for Windows and the 'setup executable' file. Extracted the 'setup executable' file and got a CDM21218_Setup.exe file, double clicked that and it installed. The GUI is just saying 'Disconnected. Trying port COM5'. I don't know what the VCP Driver is for, I unzip it and it contains 8 other files that I can't do anything with. Do they have to be dragged somewhere? I just spent an hour on the phone with a lady at Yuneec support and she probably thinks I'm just stupid because she just kept saying it was simple and I must be doing something wrong. I might be doing something wrong but her step by step instructions were poor at best. We got nowhere. What's going on?