Remote rviz in .launch file [closed]

edit

Hi everyone, so I managed to get rviz to start on my local computer and get informations from the Nodes on a remote robot. (following the tutorials -> setting ROS_IP ...). But the problem now is that I have a launch file on my local computer that starts diffrent nodes on the remote robot and rviz on my local compter. It worked before I made the network setting (of rviz did not get anything from the robot) but now I get a network problem as if I didn't set it wright: Unable to contact my own server at [http****]. This usually means that the network is not configured properly:

A common cause is that the machine cannot ping itself. Please check for errors by running:

    ping 141.3.88.177

For more tips, please see

    http://**********************

Does anyone have any idea on how to make this work on a launch file?

Thanks a lot. Best regards.

PS: As I said the launch file works fine without the network setting.