I’m having some issues with Suse 12.1, I can’t get internet access at all from a fresh install. I’ve searched extensively trying to find a solution but only wound up having to reinstall twice because the solutions I’ve found have broken more than they’ve fixed.
Occasionally I can get it to work, but 90% of the time it will time out, or take 3-4 minutes to load up a page. I can’t figure out what the problem is.
The only other Linux distro I’ve used was Ubuntu about 5 years ago (for a few months), but made the switch because after installing it again recently I didn’t like it. So I’m pretty much a Linux newbie, sorry about this but you’ll probably have to explain things to me like you’re talking to your grandmother.
Could someone kindly point me in the right direction, as I have no idea how to diagnose this kind of issue on Linux. I’m on a HP laptop, inbuilt card going to a Belkin router. Works fine on Windows (which I’m posting this from).
Just to clarify, do you mean disable wireless N in Linux or at my router level? I want to avoid turning it off at the router level as there are a few other machines on the network.
I’ve tried a few things so far with that information you’ve given me, I haven’t managed to sort it out yet.
modprobe -r iwlagn
modprobe iwlagn
seems to work for about 15 seconds, then it drops again. Something interesting I noticed is that google was loading at one point (which I’d visited in the past) but no other random sites were working. I’m not sure if that hints at some kind of DNS issue but it might be a more useful piece of information to you than it is to me.
I’ve also tried
modprobe iwlagn 11n_disable=1
(hopefully I’ve got that right)
This didn’t seem to make a difference at all.
Tried restarting after both of these, but the problem still persists.
I read a post in a bug report or something while searching, the user described the wireless N issue as dropping the connection every 5 or so minutes. Perhaps this can vary, but this isn’t what’s happening in my case. It’s pretty much constant downtime punctuated by the occasional success.
I seem to have solved this through tinkering and experimenting that was way out of my comfort zone (best way to learn I guess) - I’ve only been testing it for about 20 minutes but it hasn’t dropped out yet (touch wood). You were dead on with it being the wireless N caf.
I don’t want to think anyone else is pulling their hair out trying to fix this, so here’s what I’ve done;
su -
gnomesu gedit etc/modprobe.d/50-iwlagn.conf
Change
options iwlagn 11n_disable=0
To;
options iwlagn 11n_disable=1
As I said, it’s only been 20 minutes but even 20 seconds was impossible before I did this, so I’m pretty sure it’s fine. I managed to update without any problems as well.
I would have never figured this out without your advice caf, so thanks again.
On 01/18/2012 06:26 AM, caf4926 wrote:
>
> That’s well done
> Thanks for posting that info
Yes, well done. The problems with HT mode (802.11n) with iwlagn on some devices
is well known to the Intel developers. All I can suggest is that you enable the
wireless repo at
and try the compat-wireless package that matches your kernel. The command ‘uname
-r’ will tell you which one you are using. That way you will get what is
essentially the version of the driver that will be in the v3.3 kernel. FYI,
openSUSE 12.2 will likely ship with the v3.4 kernel.
With this, you could try “11n_disable=6”, which would disable aggregation (where
the problem likely exists), but still keep the 802.11n speeds above 54 Mbps.
