Intel Corporation Centrino Wireless-N 100 randomly stops working
25 replies, posted
My Wifi randomly stops working, I dident notice it until I switched from Xfce to Gnome which may indicate a configuration problem. However it might have been happening in Xfce4 too I just wasn't noticing it.
kernel driver in use is iwlwifi
SOLVED: Have the same issue? Set your MTU to 1500 and disable ipV6
Is the gnome network applet running ? what distro are you using ?
Fedora.. to fix the issue I have to click on the little wifi signal icon and turn it on and off, then repeat once it stops working.
Yes NetworkManager is running
a) check if [I]gnome-keyring[/I] is installed
b) try running it with [I]--sm-disable[/I] option (nm-applet --sm-disable).
c) post of the output of[I] nm-tool [/I]
keep nm-applet running with the --sm-disable flag. If it doesn't DC than you've fixed it. If it does DC post the contents of /var/log/messages
It just DC'd again.
[editline]18th January 2012[/editline]
Enabled and disabled Wifi fixed it again, posting contents from my netbook.
[editline]18th January 2012[/editline]
See I'll be doing random stuff and it will DC.
[img]http://img194.imageshack.us/img194/6117/failnet.png[/img]
[editline]18th January 2012[/editline]
Its 1500 lines, want the entire thing in a pastebin?
The last 100 lines are enough but if you want to put it in pastebin that's good too.
btw, what's that thunderbolt icon ?
[url]http://www.jupiterapplet.org/[/url]
Power management utility.
[editline]18th January 2012[/editline]
One second.. pasting this.
[editline]18th January 2012[/editline]
Stupid Atom is so slow, all I have open is Chrome, Terminal, gedit in root and Nautilus.
This is going to take awhile to actually paste because its now decided to lock up and I can't use my GUI nor can I ALT+F2 to run any commands.
to be fair it's probably not your computer that's slow; it's likely Fedora's fault. ;)
You would expect Fedora to atleast out perform Windows 7 on a Atom though.
[editline]18th January 2012[/editline]
[url]http://pastebin.com/gCxJ50p2[/url]
Two things i can think of:
make sure ip4 is forced, edit the wireless connection make sure "Require IPv4 addressing for this connection to complete" is checked.
This also could have to do with 11n, you might want to disable it. I can't find the modprobe command. looking for it.
edit:
Don't have your wireless card, i think this is how you do it:
[code]
sudo rmmod iwlwifi
sudo modprobe iwlwifi 11n_disable50=1 11n_disable=1
[/code]
This isn't persistant.
btw, i'm having trouble working out what wireless driver you're using as iwlwifi seems to be an umbrella term for all intel wireless cards. you should be using the iwlagn driver. Is that what you're using ?
^^^^
eh.
try:
[code]
sudo modprobe iwlwifi 11n_disable=1
[/code]
btw, how often does it DC ?
It DC's randomly, in the worst of times too.
[editline]18th January 2012[/editline]
is that some sort of placebo command, it doesn't look like it did anything yet my Wifi hasn't DC'd yet.
what the command did what disable 11n, one standard your wireless card tries to connect with. It's faster than the other standards but really buggy on intel chipsets.
It's worth a shot...
Is all of this on a netbook by any chance ?
Nope it dident work.
Fuck.
[editline]18th January 2012[/editline]
[QUOTE=pygar;34287580]what the command did what disable 11n, one standard your wireless card tries to connect with. It's faster than the other standards but really buggy on intel chipsets.
It's worth a shot...
Is all of this on a netbook by any chance ?[/QUOTE]
Yeah, its all on my netbook. Except for this message.
I'm thinking of migrating distros, I really love Fedora and all but I've been coping with its issues for awhile now.
ok this is my last go:
[code]
sudo rmmod iwlwifi
[/code]
[I]at this point your wirelss card should be deactivated. then: [/I]
[code]
sudo modprobe iwlagn 11n_disable=1 11n_disable50=1
[/code]
my sister had a very similar problem, at the end of the day, the wireless card was just plain shit. It failed under window too.
Arch makes debugging this type of thing really easy btw.
If it sucks after this think I should request a replacement from Acer? Faulty hardware? They just send me hardware if I ask for it in their live chat support.
Do you get the same problem under windows ? what model is your shitbook ?
[QUOTE=pygar;34287744]Do you get the same problem under windows ?[/QUOTE]
when I had windows installed I don't believe I did, something could have changed or Windows was really good at handling bad hardware.
[editline]18th January 2012[/editline]
It probably isn't my hardware, its these drivers or its a configuration issue.
Solved, set MTU to 1500 no more dropouts its stable!
how did you do that btw? Do you have a static network ip ? was it in /etc/network/interfaces
I have dynamic network ip, I'm not sure why it worked but it did, I used networkmanager to change the value..
did you lower it or increase it ?
increased it.
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