### Connection Errors

Use this topic to learn more about DPA - Remote connection errors.

During the course of connecting to or monitoring a device, error windows may appear if DPA - Remote cannot properly communicate with the device. These errors may point to a problem with the device or the network connection between the device and DPA - Remote. The device may simply be powered off or disconnected from the network.

If you get a connection error, verify these things:

- The IP address you specified is correct for the device
- The IP address for the device is unique on your network
- The device is powered-on and properly connected to your network
- You can ping or telnet to the device
- The SNMP daemon is running on your device. If your device is a Digi One RealPort or PortServer, see Enabling the SNMP Daemon on a Digi Device.
- The value in the community field you use (when selecting a device to monitor) matches the actual read or write community value defined on the device. If your device is a Digi One RealPort or PortServer, see Selecting the Device Community and Changing the SNMP Community on a Digi Device.

In cases where the Stack Trace button is available in an error window, choosing the button may provide useful troubleshooting information.