Network card sometimes is not detected - Realtek RTL8101E/RTL8102E - Ubuntu 12.04
I'm using Ubuntu 12.04. My network card sometimes is detected and sometimes it isn't. This happens every two reboots or so, and to be honest I don't have an idea of what might be causing it. Once I reboot, the eth0 connection activates normally and works fine. It's annoying and frustrating having to do this constantly every a few boots.
When off-line, in nm-applet, Enable Networking is ticked. In my connections I have only one eth0 configuration (which I created and configured manually). I have no chance of selecting it. Nm-applet says “No network devices available”.
ifconfig -a shows only lo, eth0 is not on the list. It seems that the network card is being ignored randomly across reboots. Sometimes it isn't detected but if I reboot it's detected and working again.
I think maybe I screwed up some configuration files, or something happened. It's not likely that my network card is broken, because if that was so, it wouldn't work at all. I think this has to do with Ubuntu 12.04 and my particular installation.
Is there something I can do to solve this? I really don't want to re-install.
By the way, the on-board network card is Realtek RTL8101E/RTL8102E
Thank you very much.
you use wicd? I had personally several issues with the network manager and had to desinstall it fully.
Hello floppy_stuttgart. I don't use wicd at all. I simply use the default Gnome/Unity network manager, nm-applet.
I still have this problem and I don't know what to do. Lately I didn't have time to try to fix this, so I had to reboot every time I got this.
Now that I'm free I'm open and eager to hear any advices, help, suggestions.
This is really annoying :-/
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