Open "Device Manager" on Windows. Under Ports (COM & LPT) , you should see "Cisco USB Console Windows Driver." Take note of the COM port number (e.g., COM3). Troubleshooting Common Issues
Plug the USB cable into your laptop and the Cisco device. ciscousbconsoledriver31zip link
Use a client like PuTTY or Tera Term with the standard settings: 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control. Open "Device Manager" on Windows
Note that Cisco typically requires a valid Cisco.com Login (CCO ID) to download these drivers, though many console drivers are available for free once you are logged in. How to Install the Driver 8 data bits
The most reliable method is to visit the Cisco Download Portal .