Help I just got another new in box MX-850 and it will not program.

I cannot get it to download from the editor to the remote because it gets an error: 110-47UU-0002 "Either the com port setting is incorrect or the cable is defective."

The com port and cable are OK because it will program my other MX-850 and MX-800 just fine.

The MX-850 editor version is 1.12.282

Did I get a DOA model?

Thanks for any help