![](https://i0.wp.com/www.bornholz.com/wp-content/uploads/2015/03/Selection_0082.png?w=580)
I now had it once or twice, that my enthernet network did not come up again, after suspendig the notebook to sleep-mode. A ifdown && ifup didn’t do the trick either, so that I now came up with this solution:
sudo service network-manager restart
That does the trick quite well and brings back the network interface.