Hi, I work with ubuntu 12.04, I have ROS "groovy" and I work with the make-system "catkin". I succeeded to connect my laptop (net-name "wolfgang-u") to a remote robot-system called "robert" by ssh demo@robert -l demo or ssh demo@192.168.20.141 -l demo. Then I start the command "roslaunch launchfiles scitos_only.launch" (launchfiles is my package) and I get the following error message after waiting for 15 to 60 seconds:

wolfgang@wolfgang-u:~/catkinws/src$ roslaunch launchfiles scitosonly.launch ... logging to /home/wolfgang/.ros/log/4e974d42-4795-11e3-9458-000b5d9f40bb/roslaunch-wolfgang-u-3002.log Checking log directory for disk usage. This may take awhile. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://wolfgang-u:47084/ remote[robert-0] starting roslaunch remote[robert-0]: creating ssh connection to robert:22, user[demo] launching remote roslaunch child with command: [env ROSMASTERURI=http://wolfgang-u:1234 /localhome/demo/AS/loadenv.sh roslaunch -c robert-0 -u http://wolfgang-u:47084/ --run_id 4e974d42-4795-11e3-9458-000b5d9f40bb] remote[robert-0]: ssh connection created [robert-0] killing on exit The following roslaunch remote processes failed to register: * robert (timeout 10.0s)

If this is a network latency issue, you may wish to consider setting in your launch

wolfgang@wolfgang-u:~/catkin_ws/src$

It seems to be a problem of my laptop, the program works well on other computers.