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