[SOLVED] Cinnamon 17.1 wired network not working

[zempa]

Hello,

i upgrade from 17 to 17.1 (with the update manager) and everything has been working perfectly.

But since today, wired network is not working at all whereas wireless network is working good.
I also have a dualboot with Windows 7 and i have no problem with the wired network.

Here are some informations :

inxi -Ni :

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Network:   Card-1: Intel Centrino Wireless-N 2230 driver: iwlwifi 
           IF: wlan0 state: up mac: XX:XX:XX:XX:XX:XX
           Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169 
           IF: eth0 state: down mac: XX:XX:XX:XX:XX:XX

ifconfig :

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eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          Packets reçus:1364 erreurs:0 :0 overruns:0 frame:0
          TX packets:1364 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:161238 (161.2 KB) Octets transmis:161238 (161.2 KB)

wlan0     Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX  
          inet adr:192.168.0.22  Bcast:192.168.0.255  Masque:255.255.255.0
          adr inet6: XX::XX:XX:XX:XX/XX Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:23115 erreurs:0 :0 overruns:0 frame:0
          TX packets:21945 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:20631859 (20.6 MB) Octets transmis:3244858 (3.2 MB)

cat /etc/network/interfaces :

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# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

And when i try "sudo ifup eth0" :

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Ignoring unknown interface eth0=eth0.

Thank you for your help

[zempa]

Hello,

i check for the driver of the wired network RTL8111/8168/8411 in synaptic (the package manager).
And i found that it was not installed !!

Maybe a previous update had removed the driver ?

Anyway, i installed the driver and now the wired network works fine.
I also installed the recommended kernel.

So for those who have found the wired network "broken", you should check if the driver is installed.



PS: It is so good to find my precious working as usual ^^

EDIT: i have to admit that i feel a little stupid :/
Why had i not checked the driver before ?
Anyway, my precious is back ^^