Clock synchronization issue when running rviz

[roy-augmentus]

I keep running into rviz crashing after running it for a while to control the robot. The error message shows that there is some clock synchronization issue. Afterwards, I have to restart everything to get stuff to work again. Does anyone have any clue what is happening?

[fmauch]

Could not get fresh data package from robot is a severe issue which can have multiple sources:

• Lack of real-time support in your system -> Install an RT-Kernel (I guess you did, considering https://github.com/UniversalRobots/Universal_Robots_ROS_Driver/issues/436#issuecomment-922682957)
• Too high system load on your system -> consider using a separate machine for controlling the robot.
• Networking issues / too much traffic on the network connection -> consider using a dedicated direct connection between the robot and your machine.

Also see other issues such as #135, #187, #83, #56

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