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I'm having a problem connecting to the internet..

I installed ubuntu 14.04 on my Lenovo Y50-70, dual boot with the pre-installed Windows 8 OS I had. I used this guide. Everything works perfectly, except for when I connect to WiFi networks on my Ubuntu. It seems to work well for some time (the best I got was a few minutes..), and then disconnects. After it disconnects for the first time, It won't connect again (to any WiFi network) until after I restart the computer.

If, however, I try to connect using an ethernet cable, everything goes down smoothly (no surprise-disconnects). I'd also like to point out that I don't get the same problem on my Windows OS.

I tried following several guides, none worked. Some technical things:

  • WiFi is enabled.
  • sudo /etc/init.d/networking restart won't work.
  • sudo iwconfig wlan0 power off; sudo iwconfig wlan0 power on won't work.
  • restarting network manager doesn't help.
Zanna
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Itay Hazan
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  • Please [edit] your question and provide detail to help us help you. "doesn't work" doesn't help. any error messages you got may help. You may find this useful: https://help.ubuntu.com/community/WifiDocs/WirelessTroubleShootingGuide – Elder Geek Mar 25 '15 at 16:30
  • For example adding the ouput of the commands iwconfig and ifconfig would help us and also the contents of your /etc/networking/interfaces file provides some potential crucial information. – wie5Ooma Mar 25 '15 at 22:28

1 Answers1

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First of all, thanks ElderGeek and wie5Ooma.

I started following the guide ElderGeek posted, and while doing so I came across this thread, which offered a very good answer.

The problem was the driver, apparently there is a known problem with Realtek drivers on ubuntu. Insalling the driver from here (as proposed in the thread mentioned above) seemed to work like a charm.

I'll let you know if there's any change.

Thanks again!

Itay Hazan
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