Rick,
The comm error is consistent on more than one computer. Both computers are running Windows 10 and USB 3.0 ports. The FTDI driver I am using is the latest from FTDI (See below)
/********
FTDI Info file
[Version]
Signature="$Windows NT$"
DriverPackageType=PlugAndPlay
DriverPackageDisplayName=%DESC%
Class=Ports
ClassGUID={4d36e978-e325-11ce-bfc1-08002be10318}
Provider=%FTDI%
CatalogFile=ftdiport.cat
DriverVer=09/28/2016,2.12.24
*********/
Also, I changed the comm port to COM4 per the Readme file and it made no difference. Basically, this development kit is DOA and useless to me right now.