How to Connect Cisco Device via USB Cable Using Putty

1) Login to Cisco’s support site and download the Cisco USB Console driver

Cisco USB Console driver

2) Plug in USB cable to Cisco device and PC

3) From your PC open Device Manage à Ports should now show the Cisco Serial (COM3) listed

Cisco Serial (COM3)

4) Open Putty, choose Serial and change COM1 to COM3 and click Open

Serial COM3

Note: If this stops working, follow the troubleshooting steps below:

  1. Open Device Manager –> Ports
    • You need to change “USB Serial Port (COM3)” to “Cisco Serial (COM3)”
  2. Right-click “USB Serial Port (COM3)”–> Properties
  3. Driver tab –> Update Driver
  4. Browse my computer for software
  5. Let me pick from a list of devices on my computer

USB Serial Port

Cisco Update DriverPorts should now have the correct device listed: 

Cisco Serial COM3 Port

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