# Error: Device not reachable - How should I resolve this ?

- This error might occur because the device is not pingable from OpManager server.
- Try pinging the device from Command prompt / Terminal.  
  ![Device not reachable error resolution in OpManager: Command prompt to ping device](https://www.manageengine.com/network-monitoring/faq/images/adddevicefailed.PNG)
- If the response to the ping command is something like **"Ping request could not find host"**, it is an indication that the device is unreachable and hence the device will not be added to OpManager.

**Note**: We can still add the device by using the device's IP Address. The device will be added but will not be monitored by OpManager.