What are you using (Windows 10/11, macOS, Linux)?
Connect the USB Type-A to Type-B cable between your computer and the router. asr9xxusbconsoledriverszip hot
Cisco ASR 900 Series routers require specific USB drivers to establish a console connection via the mini-USB port. The file asr9xxusbconsoledrivers.zip What are you using (Windows 10/11, macOS, Linux)