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The pc and the raspberry shouldn't have the same configuration. They have to have the same ROS_MASTER_URI but their ROS_HOSTNAME (or ROS_IP) should be their own.

You should have in the .bashrc:

On the pc :

export ROS_MASTER_URI=http://PC_IP_ADDRESS:11311

export ROS_HOSTNAME=PC_IP_ADDRESS

On the rapsberry :

export ROS_MASTER_URI=http://PC_IP_ADDRESS:11311

export ROS_HOSTNAME=RASPBERRY_IP_ADDRESS

See #q272065 for a much more detailled answer.

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