Usually this is because the driver was not initially installed or an old driver was used when updating to a new operating system (OS). Confirm that you have the appropriate driver for your device and Windows OS and then install the driver. You may have to uninstall the old driver if it is installed on the computer.
You can find the current driver for the USB adapter we supply with FinishLynx packages on our web site (finishlynx.com).
Plug the device into a USB port after driver is installed and then let Windows recognize the device. Windows 7 OS will usually prompt with a bubble in the bottom right showing that the device installed successfully and display the COM port number assigned.
If you need to confirm the COM port number, this can be found in the Control Panel under Device Manager and listed under Ports.
Key words: USB, adapter, COM port, driver, Device Manager