Konfiguriere mal manuell über die interfaces und verwende für den rechner die IP-Adresse 192.168.178.10
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.178.10
netmask 255.255.255.0
gateway 192.168.178.1
post-up echo "nameserver 8.8.4.4" | tee /etc/resolv.conf
post-up echo "nameserver 192.168.178.1" | tee -a /etc/resolv.conf
Testen:
sudo sed -i s/managed=true/managed=false/g /etc/NetworkManager/nm-system-settings.conf
sudo /etc/init.d/networking restart
ifconfig
cat /etc/resolv.conf
ping -c2 google.com
Änderungen bei Bedarf rückgängig machen:
auto lo
iface lo inet loopback
# auto eth0
# iface eth0 inet static
# address 192.168.178.10
# netmask 255.255.255.0
# gateway 192.168.178.1
# post-up echo "nameserver 8.8.4.4" | tee /etc/resolv.conf
# post-up echo "nameserver 192.168.178.1" | tee -a /etc/resolv.conf
sudo /etc/init.d/networking restart
sudo sed -i s/managed=false/managed=true/g /etc/NetworkManager/nm-system-settings.conf
sudo service network-manager restart
Und überprüfe dennoch Kabel und Anschlüsse.