Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Lately (this past few days after an update) my laptop started acting strange.

The meaning by acting strange is that:

  1. Ubuntu just crashes whenever I fiddle with the wlan.
  2. The internet has become ridiculously slow.

Using points out that when I'm using Ubuntu the download speed graph is very "edgy", the upload seems to be fine. On Windows though the download speed is just fine (around 50mbps, the Ubuntu test didn't get past the 1mbps).

I think it started after the latest kernel update (to if I remember correctly). Tried to update it again but it went even worse than it was before.


I've done a speedtest on a live cd with ubuntu 11.04(same as I have installed) And it works great, the installed version is corrupted I guess. how can I fix it?

My system is as follows:

Dual boot: Windows 7 64bit, Ubuntu 11.04 32bit
Laptop: Dell E6410, i7 4 GB Ram
Wireless network card: DW1520 Wireless-N Half-Mini Card
share|improve this question

closed as too localized by fossfreedom Mar 1 '12 at 16:20

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Have you tried to boot into an older live-CD to compare if there's any difference with speedtest? You could e.g. boot into a 10.10 live-CD and try it. – N.N. Aug 25 '11 at 10:27
@N.N. I'll have to download and try. I've never experienced this before, computer has been running smoothly with 11.04 so far. – Cu7l4ss Aug 25 '11 at 10:55
@N.N. I've done the test, seems fine. – Cu7l4ss Aug 25 '11 at 23:43
Do you get bad speeds on a 11.04 live-CD too? – N.N. Aug 26 '11 at 6:37
No. Actually it's great, 15mbps. How can I reinstall the network drivers? – Cu7l4ss Aug 26 '11 at 8:22

Browse other questions tagged or ask your own question.