You probably have already tried switching USB cables...they do fail. GL de Mike K7PI
-----Original Message----- From: dx4win-boun...@mailman.qth.net [mailto:dx4win-boun...@mailman.qth.net] On Behalf Of F6EXV Sent: Wednesday, December 11, 2019 09:41 To: REFLECTOR dx4win <dx4win@mailman.qth.net> Subject: [Dx4win] Rotator control Hi all I used to have my Prosistel 70D rotor work perfectly with DX4Win. It no longer does, and the com port it was connected with (com 2) no longer shows on the device manager of my Windows 10. I tried com 1 on both DX4Win and Prosistel, it still does not work, and they cannot communicate. Any idea what I should check and/or modify ? Thanks + 73 Paul F6EXV ______________________________________________________________ DX4WIN mailing list Home: http://mailman.qth.net/mailman/listinfo/dx4win Help: http://mailman.qth.net/mmfaq.htm Post: mailto:DX4WIN@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ DX4WIN mailing list Home: http://mailman.qth.net/mailman/listinfo/dx4win Help: http://mailman.qth.net/mmfaq.htm Post: mailto:DX4WIN@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html