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Yesterday I've installed Ubuntu Server 14.04 on my laptop (Dell, 2.6Ghz Quad-Core, 8GB RAM).
I've been following this tutorial
Everything worked fine after I finished the tutorial, I could connect to FTP using another PC, I even installed Wordpress using another PC.

The strange thing happened when I turned On my laptop today morning.
Now, I can't connect to FTP, actually I can't do anything (even apt-get update ) which gave me a thought that I have no internet connection.

I've tried to disconnect my another PC (Windows) who is connected to the same network router as my laptop (Ubuntu Server), that didn't worked out.

Please, since I am a TOTAL beginner in Ubuntu Server stuff, tell me which information do I have to provide you more it order to solve this problem?
I checked various websites (even some of topics here on askubuntu.com), but none of those helped me to solve the problem.

EDIT: I just reboot my laptop again, and everything is WORKING FINE NOW, can somebody tell me a reason why this could happen at all?

EDIT2: http://paste.ubuntu.com/10802702 (syslog)
EDIT3: My ip addr: http://paste.ubuntu.com/10802731

Hoh
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  • see https://help.ubuntu.com/community/NetworkConfigurationCommandLine/Automatic and post additional information. – Panther Apr 11 '15 at 18:28
  • @bodhi.zazen please check my EDIT note, everything is working now again, after I reboot my system (20th time today), and I have no idea why it's working now... – Hoh Apr 11 '15 at 18:28
  • @ElderGeek yeah I know how StackExchange works, that's why I wrote that since I am a total beginner you guys can just tell me what information do you need (since I don't really know). And thanks for welcoming me ;) – Hoh Apr 11 '15 at 18:35
  • dmesg might provide some clues as well as cat /var/log/syslog |grep error – Elder Geek Apr 11 '15 at 18:40
  • @ElderGeek both of those gives A LOT of information, the second one gives a lot of errors. Want me to upload it to pastebin? – Hoh Apr 11 '15 at 18:42
  • Ouch! my syslog grep error shows only 1 entry... Perhaps you could narrow it down to only the last hour of errors by cat /var/log/syslog | grep error> errlist.tmp and opening errlist.tmp with gedit as gksu gedit /var/log/errlist.tmp and cutting and pasting the info or a pastebin link into an [edit] of your question. – Elder Geek Apr 11 '15 at 18:48
  • @ElderGeek I just did that, you can take a look if you click on the link I provided in Edit2 – Hoh Apr 11 '15 at 18:53
  • it all seems to start with b43: probe of bcma0:0 failed with error -524 You may find this helpful: http://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers – Elder Geek Apr 11 '15 at 18:58
  • Possible duplicate: http://askubuntu.com/questions/55868/installing-broadcom-wireless-drivers – Elder Geek Apr 11 '15 at 18:58
  • @ElderGeek is there a way to just disable my wireless card? Since I am not using it at all – Hoh Apr 11 '15 at 18:59
  • http://askubuntu.com/questions/443268/how-to-disable-my-internal-wifi-card – Elder Geek Apr 11 '15 at 19:00
  • I did all that, I hope I won't have any problems in future about that. Thank you a lot. Please post your comments as answer so i can mark it, please. @ElderGeek – Hoh Apr 11 '15 at 19:04
  • Please upvote the answers that helped you from those questions that I provided you links for in the comments. Those good people deserve all the credit. I will write up an answer on the off chance it doesn't get closed as a duplicate. – Elder Geek Apr 11 '15 at 19:17

1 Answers1

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Based on your pastebin files it all seems to start with b43: probe of bcma0:0 failed with error -524

This points to a problem with the broadcom drivers. Answers on how to solve that problem are here.

As you say you aren't using your wireless card at all you can disable it with solutions found here

You may also wish to check your DNS settings and compare to your ISP's recommendations. Or add Googles public DNS at 8.8.8.8 as shown here if you have a GUI:

DNS

Or via the CLI by editing /etc/network/interfaces as answered here

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