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I have a visualizer running on a laptop via a wifi connection subscribing to GPS messages. When the wifi is dropped the gps publisher hangs (preventing vehicle control through other subscribers). When the wifi is reestablished the publisher continues where it left off.

Is this normal? - how do ensure the vehicle code runs independently of any wifi based subscribers? Is this rospy specific behavior?

Originally posted by Johnny on ROS Answers with karma: 1 on 2012-03-08

Post score: 2

Original comments

Comment by Mac on 2012-03-08:
Are you using a topic, or a service?

Comment by Johnny on 2012-03-14:
topics. I have duplicated my issue with the talker listener tutorials. e.g. start both roscpp and rospy talkers (publishing to the same chatter topic), and on a wirelessly connected pc start a (either) listener, drop the connection, and later (~1 minute) the rospy publisher hangs, roscpp still OK.

Comment by Mac on 2012-03-15:
It might be worth taking this question to ros-users, as it sounds like you might have triggered a real bug. (I was really hoping the answers was services; because services are synchronous, that would explain your problem)

Comment by Advait Jain on 2013-02-07:


1 Answer 1


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I have opened a ticket for this: https://github.com/ros/ros_comm/issues/169

Originally posted by Advait Jain with karma: 140 on 2013-02-07

This answer was ACCEPTED on the original site

Post score: 0


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