Check you PC device manager screen to see if you have two WICED ports:
- Wiced USB Serial Comm Port
- libusbK Usb Devices>WICED USB JTAG Port.
Unplug and re-plug the EVB after installing the CYW9WCD1EVAL1 driver?
The Inventek eS WiFi Demo Program can be used to install the FTDI drivers.
Run the program as administrator and if you have issues you can remove the latest driver and try the legacy driver.
Also has a debug option for JTAG that can help us find the problem.
Alos confirm that Load vCP is checked