Why does the igus Robot Control software not connect with the controller?
Please follow these steps to check the connection:
Make sure the ethernet cable is connected to the robot's ethernet port on the right.
Take a look at the Establish connection chapter in the igus Robot Control manual and check, if you followed all the steps.
If your computer has more than one network card, make sure that you configured the IP settings of the card, that is connected to your robot.
Restart your computer.