Here are 5 common items to check when experiencing issues connecting a D25NC to EasyMatch QC. Please see the attachments for more details.
1) Are you using the latest version of EasyMatch QC V 4.83 or above?
2) Did you select Sensor/D25 Product Setup and fill in the required fields?
3) Is there a switch on the back of the base that has a computer and printer icon (picture) ? Make sure it is switched to computer.
4) Is the system showing up in the computer control panel when you connect USB?
5) Is USB starting and stopping (beeping sound or disappearing in Control Panel)? Turn off USB Power savings in Root Hub of Device Manager USB Controllers Properties