[ WARN] [1685093610.943024678]: Velodyne poll() timeout

[NadimDeeb]

Please complete the following information:

• OS and Version: Ubuntu 20
• ROS Version: Noetic
• Built from Source or Downloaded from Official Repository: Downloaded from Official Repo
• Version: from master branch

Describe the bug I keep getting the [ WARN] [1685093610.943024678]: Velodyne poll() timeout message and /velodyne_points is not showing any data

To Reproduce Steps to reproduce the behavior:

1. Run roslaunch velodyne_pointcloud VLP16_points.launch
2. The [ WARN] [1685093610.943024678]: Velodyne poll() timeout messages keeps popping up
3. then run rostopic echo /velodyne_points
4. No data echoed
5. Nothing shows up in Rviz

Expected behavior I expected it to map the environment

Additional context Add any other context about the problem here.

[JWhitleyWork]

@NadimDeeb This is not a bug. This can happen for many reasons including incorrect IP address configuration, incorrect port configuration, a bad cable, etc. Please check your physical configuration and validate data flow with a network analysis tool like Wireshark.