I think you're looking in the wrong place in the Device Manager for the mount to show up.
When you connect the USB cable and power up the mount, look under COM & LPT Ports in the device Manager. A new COM port should appear when you power on the mount. Note the Port number. Open the COM Port Properties dialog and select the Port Settings tab. Change the Speed from 9600 (which is probably the default that Windows selected) to 115,200 as Paul mentioned in Post #2 in this thread. Apply those changes.
Now go into the EQMOD Set-Up Dialog and change the Port Number selection there to match the Port number you noted in the Windows Device Manager.
Also change the speed to 115,200 to match the Windows properties. Close the EQMOD Set-up window and now try to start EQMOD. It should connect and work fine after those changes.
If the Device Manger does not show a new COM Port when you connect the USB cable and power on the mount, you probably didn't get the low level device driver properly installed. Look for an "Unknown" device in the Device Manager (a device with a yellow triangle next to it) and open its properties. Click on Update Drivers to let Windows search again for the proper device driver to load. Then try the steps above again.
Edited by jdupton, 19 September 2019 - 09:31 AM.