Thanks for posting.
For assistance with the Plugable USB to Serial adapter, please send a mail to firstname.lastname@example.org with your Amazon order ID and the output from our support tool, PlugDebug. Instructions to download and use PlugDebug are here:
The details provided by PlugDebug will help us to see whether the device is recognized, whether the appropriate driver is loading, as well as whether the appropriate network connection exists.
I’ll also need to know what device you are connecting the serial cable to at the other end, eg. a sign, GPS unit, vinyl cutter, or whatever the device you wish to communicate with is.
For your own protection, please do not post this personal information to our forum, please instead email email@example.com.
Technical Support Engineer