Ping from the laptop to the workstation and back by IP, or fully resolved hostname. From TurtleBot laptop ping workstation/desktop using IP_OF_WORKSTATION
ping IP_OF_WORKSTATION
Note: Replace IP_OF_TURTLEBOT with actual IP address of TurtleBot that was determined in previous step.
From workstation ping TurtleBot using IP_OF_TURTLEBOT
ping IP_OF_TURTLEBOT