Wireless issues with Toutatis
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Anyone experiencing wireless issues since the upgrade to Toutatis? My wireless connection, which worked flawlessly with Brigantia, now drops from time to time while I surf the web for instance, and systematically when I do large file transfers via wifi between my computers. This happens on two computers, one with a Broadcom wifi card, the other one with an Atheros.
I have found some results for 'ubuntu precise wireless dropping' which seem to indicate that some Ubuntu users experienced the same problem when going from Oneiric to Precise, with a wide range of network cards. I have yet to try any of the suggestions found in these threads, but in the meantime, does anyone here using wireless have the same issue? What have you done to fix it?
Any help much appreciated. Surfing these days is not fun :(...
Disabling ipv6 in network manager *may* have fixed the problem. I was finally able to transfer some large files through ssh and smb, whereas it kept failing previously. I will now hope that the issue is gone for good. Keeping my fingers crossed...
The problem is still there :(. I just tried to transfer a 136 Mb folder from one computer to another with samba and wireless got disconnected after transferring a dozen files. I was also disconnected while simply downloading my email.
Am I the only one experiencing such an issue on Toutatis?
This is the thread where I speak with myself, so please indulge me one last time lol :). Well I sure hope it is the last time!
I *may* have found the fix! I was finally able to transfer some large directories with samba over my wireless connection.
Here's what I did:
1. Disable ipv6 in /etc/sysctl.conf by adding:
#disable ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
2. Replace network-manager by wicd
3. Execute:
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi 11n_disable=1
(info on how to make that persistent found on http://ubuntuforums.org/showthread.php?t=1966860&page=4)
Not sure steps #1 and #2 are really needed. Step #3 was on the other hand crucial to finally making it work.
Now keeping my fingers crossed and hoping that the problem has been fixed once and for all.
Well, I still have the issue and haven't been able to find a fix. Updating to the latest linux-libre kernel didn't help, and neither did all the wireless module tricks and tricks found on Ubuntu forums.
Actually, I have found several messages on the Ubuntu forums describing the exact same problem: a wireless connection that was rock-solid before 12.04 becomes unstable with 12.04, mostly when tranferring large files either through samba or rsync. Unfortunately, those messages either have no answers at all, or useless answers. It may be a combination of 12.04 and routers with dd-wrt which causes the problem, but I couldn't find any solution after playing around with dd-wrt's configuration.
I guess I'll just try to use a wired connection from now on, if I can manage to pass a cable from my basement where the router is, to the ground floor room where the desktop is.
I hadn't spotted this thread before. I too have been having problems for some time. I've gone through a similar - try something, it seems to work, then a while later I discover I still have the problem.
My latest change again has worked for a few weeks but I can't be certain yet. I switched my router to 802.11g only instead of 802.11n . A lot of the consumer devices out there despite claiming 802.11n are in fact built around 802.11n draft chips. From what I can gather there were several drafts, not all of then work well with each other.
I decided that was something to try after hearing that W$8 similarly has lots of intermittent WiFi problems. I reasoned, after having tried so many things, that the answer might be something that was common between the two.
YMMV
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