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I can't seem to download files from the internet on my laptop with Mint/Ubuntu, due to strange bandwidth fluctuations.

I'm able to browse the web with Firefox with no problems, apt-get update and dist-upgrade work normally, both my Firefox, Deluge and Transmission have standard settings, I haven't tweaked anything.

Yet every time its the same story: a file starts downloading either via direct download or torrent; initial speed is around 1MB/s and several MBs are downloaded. Then the speed decreases gradually until it reaches 0. After some interval (5-20min) it again rises to around 800MB/s, downloads 1-2 MBs and then decreases to 0.

After a while, in case of direct download almost nothing is downloaded and often I get an error window that say could not download the file. The same files are downloaded within 5-10min via my desktop with win7.

Any ideas as to what may be the cause?

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  • Does dmesg or /var/log/syslog shed any light on what's going on?
    – slm
    Nov 29, 2013 at 5:31
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    Im a newbie to linux, so You would have to tell me what to look for in dmesg and syslog. To me its a huge bunch of text and I dont know even where to start. Forgot to mention, firewall is turned off
    – user53382
    Nov 29, 2013 at 5:41
  • You'll need to post the contents of these 2 to pastebin.com so I can look at it then. We'll be here for 2 weeks if I have to walk you through them 8-). Post the links here when you've got them there.
    – slm
    Nov 29, 2013 at 5:51
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    Thanks slm for Your help and interest. By accident I found the solution - my broadcom BCM4313 drivers were listed in devices and drivers, but were not selected. After turning them on everything works fine! I am a new user and apparently my reputation prevents me from answering my own questions, so maybe You could answer it for me. So dmesg and syslog are not beginner-friendly topics? :)
    – user53382
    Nov 29, 2013 at 6:00
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    dmesg and syslog are readable, but require some time to gain understanding about. They are attainable to a beginner but will require an hour or 2 to get. If you wait 8 hours you can provide your own answer. I'd encourage you to do this. unix.stackexchange.com/help/self-answer
    – slm
    Nov 29, 2013 at 6:31

1 Answer 1

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The problem has been solved.

What I neglected to do, was to check under settings > devices and drivers and see if my drivers for Broadcom BRC4313 are selected or not. Which they weren't. After turning on the driver, bandwith returned to normal

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