Unable to view map, pointcloud, or images in RVIZ when ssh onto robot.
I'ved used http://users.umiacs.umd.edu/~cteo/umd... to connect to the ROS_MASTER_URI. I am able to see the rqt_graph, tf_tree, and even send velocity commands on the rviz from the remote machine. However, the PointCloud2 doesn't show. I'm unable to changed the fixed frame from map as well.
Subscribing to pointclouds can easily result in multiple MB/s traffic. if you're using wireless, that easily saturates your link, to the point where no msgs make it across successfully and everything slows to a crawl.
Check with a network traffic tool to see what sort of traffic you're generating.
That document essentially summarises the ROS/Tutorials/MultipleMachines and networking tutorials.