by guitarjamman » Tue Jan 31, 2012 8:21 pm
I dont know if you have resolved this or not but I can tell you what worked for me.
I had the same issue with X-Port and the serial to USB cable. What solved my problem was trying to connect to the device by going through each USB port on my computer and not adjusting any COM settings on the data collector. Windows device manager was telling me that I was plugged into COM 2 so I set up my data collector to send through COM 2. No beans; so through trial and error I found that COM 4 worked no problem and all the rest were bunk.
Not a technical solution to the problem but a way around it for me. Never had the problem with Windows XP but transitioning to Windows 7 was a headache.