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Solution 1
Step 1 – Remove the Gnome Network Manager: You need to complete this
step first because if left installed this application will overwrite
any changes you make to your configuration when the system is rebooted.
This is apparently where the bug is located.
To remove the Gnome Network Manager issue the following command in the terminal:
sudo update-rc.d -f NetworkManager remove
This will disable and remove the Gnome Network Manager application. Now you will have to edit your configuration manually.
Restart your System
Step 2 – Manual configuration of your network interface: In this step you will manually configure your network interface by editing the following two files using your preferred text editor(nano gedit vi). For the purpose of this example I am using the nano editor.
Step 2.1 – Manually configure your network interface file: You can edit the appropriate file by entering the following command into the terminal:
sudo nano /etc/network/interfaces
Once your prefered editor opens the file you want to enter the following information (changing your addresses where necessary):
auto lo eth0
iface lo inet loopback
iface eth0 inet static
address xxx.xxx.xxx.xxx(enter your ip here)
netmask xxx.xxx.xxx.xxx
gateway xxx.xxx.xxx.xxx(enter gateway ip here)
Be sure to save your changes.
Step 2.2 – Manually configure your dns configuration file: You can edit the appropriate file by entering the following command into the terminal:
sudo nano /etc/resolv.conf
Once your preferred editor opens the file you want to enter the following information (changing your addresses where necessary):
# Generated by NetworkManager
nameserver xxx.xxx.xxx.xxx(enter your dns server ip)
nameserver xxx.xxx.xxx.xxx(enter your alt dnsserver ip)
Be sure to save your changes.
Step 2.3 – Manually restart your network interface with the new settings: Enter the following command in the terminal:
sudo /etc/init.d/networking restart
This should return a result that looks like the following:
*Reconfiguring network interfaces… [OK]
At this point in your terminal you should be able to run the ifconfig command and the results should reflect your new settings. If the addressing is correct you should have full network access, even after a system restart.
Haven’t tried reinstalling the Network Manger after doing these steps to see if it still works.
Solution 2
Install Wicd if you need both wired and wireless connection
Solution 3
Also, it is said that adding a new config in networkmanager (instead of editing the system default ‘Auto eth0′ stuff) and assign the right MAC address (and the static ip) will fix it, every thing’s fine even after reboot, and you can still use that gnome-networkmanager.
Check this simple guide
Credit Goes here
Static IP ok with solution #8 BUT I would also like to know how to make resolv.conf stay the way we edit it.
Anyone?
I found here how to avoid your resolv.conf:
sudo chattr +i /etc/resolv.conf
Note: this locks the file so even as root you wont be able to edit it. To unlock it use: sudo chattr -i /etc/resolv.conf
Artist, i did your solution steps, and works, I have two issues,
1.- Network Manager doesnt start at Start Up.
2.- I cant resolve DNS and Internet traficct doesnt Work.
if somebody can help me.
Great dude, I was having this problem and now It’s fixed.
Reply 20 by Fabio worked for me. Thanks.
# 20 worked for me too! Thanks Fabio Dude…
#8 and #32 makes my system with static IP thanks a lot.