We recently have come across an issue regarding the connection of ArcGIS 10.4 (running on Windows 10 on a Panasonic device) with an external GPS-System. The actual problem was that the COM-PORTs were all deactivated resulting in the impossibility of using an external GPS. Microsoft has supposedly issued a reference to device producers indicating that these settings should be set in such a manner concerning the usage of Windows 10.
The solution for this issue is to contact the device producer (in this case: Panasonic) and have them configure the drivers to activate the designated interface.
#GPS #COM-PORT #NMEA
(PS: Related Bug: Bug: The GPS toolbar does not recognize COM ports over COM9 )