I find the same problem always appear when numbers of computers share the one master, but I just in one computer publish and subscribe the message ,why I have the same problem.
Originally posted by cros on ROS Answers with karma: 3 on 2016-03-21
Post score: 0
Maybe you have more than one NICs. For example, we usually have a Gigabyte Network Card and a Wi-Fi card in one laptop, if they all connect to the networks, ROS will be confused. You'd better add an extra line in you .bashrc file like:export ROS_IP=192.168.1.2 to declare which local IP you want to use. Then your ROS knows which NIC should be used.
Originally posted by lightbulb with karma: 63 on 2016-03-23
This answer was ACCEPTED on the original site
Post score: 0