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# Frequent wifi drops in F17

I have trouble with wifi. It's quite instable.

I recently installed Fedora 17, because it recognised my network card while Ubuntu didn't, and I didn't want to search for a driver. I use NetworkManager. It detects and connects to wifi "spots" correctly.

My problem is the quality of the connexion. Generally, at first, the wifi works fine. Then, from 2 minutes to 1 hour after, the wifi drops completely. Network Manager says I'm still connected and gives me a gool signal, but it's not the case for me and Computer Monitor confirms it by displaying "input: 0b/s". Sometimes, after waiting for a few minutes, it slowly comes back. More often, I have to switch off then on, wait a longer time than usual for NM to connect to the wifi and it's back. I don't have to reboot the computer to make it work again. On Windows, there isn't this problem. Please, help me stop relying on this OS so I can get rid of it!

I heard it could be related to "n" wifi. I noticed that the wifi drop could occur at any distance from the wifi spot, but maybe it happends more frequently farther from it. I tried the following. I created /etc/modprobe.d/iwfwifi.conf and wrote in it options iwlwifi 11n_disable=1. I rebooted, but I think it didn't affect the problem. So I put a # in front of this line to make it a comment.

This problem seems to affect "many" people, but none of their posts wherever they were made got an working answer. I wanted to try out Wicd, but it show me error messages, so I gave up. Please, give me leads. I will gladly become a test subject.

I pulled as much information from the terminal as I could. Here they are:

uname -a

Linux nunuxdeluxe 3.8.4-102.fc17.x86_64 #1 SMP Sun Mar 24 13:09:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux


dmesg

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.8.4-102.fc17.x86_64 (mockbuild@bkernel02) (gcc version 4.7.2 20120921 (Red Hat 4.7.2-2) (GCC) ) #1 SMP Sun Mar 24 13:09:09 UTC 2013
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.8.4-102.fc17.x86_64 root=/dev/mapper/vg_nunuxdeluxe-lv_root ro rd.md=0 rd.dm=0 rd.lvm.lv=vg_nunuxdeluxe/lv_root SYSFONT=True rd.lvm.lv=vg_nunuxdeluxe/lv_swap rd.luks=0 KEYTABLE=fr LANG=en_US.UTF-8 rhgb quiet
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009d800-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000009f99dfff] usable
[    0.000000] BIOS-e820: [mem 0x000000009f99e000-0x000000009f9eefff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000009f9ef000-0x000000009fb1dfff] reserved
[    0.000000] BIOS-e820: [mem 0x000000009fb1e000-0x000000009fb1efff] usable
[    0.000000] BIOS-e820: [mem 0x000000009fb1f000-0x000000009fb26fff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x000000009fb27000-0x000000009fb4afff] reserved
[    0.000000] BIOS-e820: [mem 0x000000009fb4b000-0x000000009fb8dfff] ACPI NVS
[    0.000000] BIOS-e820: [mem ...
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## 1 Answer

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Replacing Network Manager with wicd is a good idea. What happened when you tried? Here are the commands that I used:

sudo yum install wicd wicd-common
sudo yum remove NetworkManager


In some versions of wicd, its gui wireless scanner does not appear when you right-click on the tray icon. So I just created a shortcut in my panel that runs "wicd-client -n", and I click that icon when I need to manage my networks.

Note: I'm using F16, and the version of wicd that the F16 package manager installs is buggy - it would not work on my system. I had to d/l the dev version from here.

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Asked: 2013-04-30 17:39:25 -0600

Seen: 780 times

Last updated: May 02 '13