You could very well be right, as nothing else suggested to me so far makes clear sense to me about this problem or has solved it. I was told to try different cables, different computers, different connection procedures, re-install the interface and more, all of which I did with no positive results. Yuneec did delve into the OS as a possible problem to the extent that they could. I volunteered for them to take remote access of my computers to see if they could figure something out that way, but I was told they didn't have that capability.
So I've been stymied for over 2 months, since I got my Typhoon in mid-December 2016. To make matters worse, I come from a Mac background and have only switched over to Windows within the last year or so due to business reasons, just in time for the Window 10 conversion and its inherent problems. So I am not a Windows OS wizard by no stretch of the imagination.
I'll take any help I can get with this and am open to all viable possibilities. And I'm not alone out here, either. Other H pilots have had the same woes. My mind tells me it has to be something obvious that is being overlooked, but my patience has not allowed me to find out just what that might be.