Extract the driver files, right-click the .inf files (usually ftdiport.inf and ftdibus.inf ), and select . Plug your USB UART cable back in. Method 3: Roll Back to an Older, Stable FTDI Driver
The FT232R chip is a single-chip USB to asynchronous serial data transfer interface. In the context of Fortinet hardware, it is used to:
Download the FTDI Virtual COM Port (VCP) driver directly from the FTDI website.
If you see a "Code 10" or "Code 43" error, you may need to right-click the device and select "Update Driver," then point to the folder where you extracted the VCP drivers.
FortiShield protects FortiClient processes from being tampered with, but it can also prevent standard drivers from updating their state flags. Open . Go to Settings and look for FortiShield . Turn the toggle to OFF (requires admin privileges). Unplug and replug the FT232R USB cable.