: Visit the FTDI VCP Drivers page and download the architecture-appropriate version for your OS (e.g., Windows 10/11 x64).

Baud rate mismatch. Fortinet defaults to 9600 baud, 8 data bits, 1 stop bit, no parity . Solution: Double-check your terminal (PuTTY, Tera Term, Screen). Also, some older FortiGates use 115200 baud. Cycle through baud rates if console shows ����� .

If you are attempting to connect to a Fortinet device and your computer is failing to recognize the console cable, you do not necessarily need a "Fortinet exclusive" driver file. You generally need the correct or the VCP (Virtual COM Port) Driver .

: These cables contain an integrated circuit (often the FT232R or similar) that converts a computer's USB signal into a serial (UART) signal the firewall can understand. Driver Availability