Check That The Xbee Modules Are In The Same Network; Restore Default Settings; Port In Use; Potential Cause - Digi XBee S2C DigiMesh 2.4 Kit Getting Started Manual

Troubleshooting

Check that the XBee modules are in the same network

Check that the following parameters have the same value for all XBee modules on your network:
XBee module development kit Parameters
XBee S2C DigiMesh 2.4

Restore default settings

If the XBee modules are properly connected and in the same network, restore default settings and
configure them again.

Port in use

Message: "The port is already in use by other applications."

Potential cause

The serial port where the local XBee module is connected can only be in use by one application.

Resolution

Make sure the connection with the XBee module in the XCTU console is closed and there are no other
applications using the port.
XBee S2C DigiMesh 2.4 Kit Getting Started Guide
ID (Network ID) and CH (Operating Channel)

Port in use

40