Hi all,
I'm new to modeling and i have a problem. 
I bought this cable for the simulator https://it.banggood.com/22-in-1-RC-Fligh...rehouse=CN.
Everything worked correctly with my fs-i6, but a few days ago my PC sopped detecting the remote control and the simulator does not work.
I have checked the vJoy interface and all the settings are ok but i can't understand why the usb to uart converter wonìt recognize the Transmitter.
If i connect the transmitter using the microphone jack and smartproplus it work well therefore I exclude that the radio control is broken.
I hope you can help me, thanks in advance.

Could that be something you installed recently that interferes with it? Or maybe windows update?
maybe try reinstalling the driver.

If nothing works you can still try this method:
https://oscarliang.com/betaflight-fc-fpv-simulator/