+ AA6YQ comments below
The rig generating the port is a TS-590S. The device it generates is listed as "Silicon Labs CP210x USB to UART Bridge".
+ Consider downloading and running Kenwood's ARCP-590 application (with Commander terminated):
+ If it reports the same error as Commander, then engage with Kenwood technical support.
? ? ? ?73,
? ? ? ? ? ? Dave, AA6YQ
