Automatic network connection after booting

We have a local network for robot, computer and other devices. All components are connected over a switch. After starting the UR controller we never have an active network connection although the correct IP address is shown under “About”.
Changing to “Settings” the network shows a green check mark. After pressing in this view the button “Apply” the network start again and works.
How can we activate the automatic start of the network without manual action?

After updating to UR16e to firmware 5.12.2 the connection problems are solved.