Wireless problems.
Mark Haney
mhaney at ercbroadband.org
Mon Jun 23 18:50:29 UTC 2008
Matthew Saltzman wrote:
> On Mon, 2008-06-23 at 13:56 -0400, Mark Haney wrote:
>> Matthew Saltzman wrote:
>>> On Mon, 2008-06-23 at 11:53 -0400, Mark Haney wrote:
>>>> Timothy Murphy wrote:
>>>>> Mark Haney wrote:
>>>>>
>>>>>> I will mention that when I reboot, and I look in 'Network' in GNOME,
>>>>>> that I see 2 wireless cards listed. Originally, it showed 'wlan0' and
>>>>>> 'wlan0.bak', along with 'eth0' and 'eth0.bak'. I don't know how that
>>>>>> happened, but I'm wondering if kudzu doing something. Even when I
>>>>>> deleted the wlan0.bak option and rebooted, same thing.
>>>>> I think this is part of the completely crazy pre-NM WiFi setup.
>>>>>
>>>>> NM is crazy too, but in a different way.
>>>>>
>>>>> Did you try, incidentally, "iwconfig wlan0 essid <whatever>"?
>>>>> Do you have the ESSID set in /etc/sysconfig/network-scripts/ifcfg-wlan0 ?
>>>>>
>>>>> Also maybe worth trying "iwconfig wlan0 MODE Managed" or "MODE AdHoc".
>>>>>
>>>>> Ps I'm not a WiFi guru, just a sufferer from it.
>>>>>
>>>>>
>>>>>
>>>> See, on my other wireless system (laptop running Gentoo), I always fire
>>>> up my wireless this way with no trouble, no matter where I am. (Uh, the
>>>> manual CLI way) The script I use has never failed me to launch iwconfig
>>>> and then bring up the interface.
>>>>
>>>> In Fedora, even from the CLI I cannot get the interface to connect.
>>>> It's UP, from the standpoint that I have an entry in ifconfig that tells
>>>> me it's up. The modules are loaded (and I've tried load/unload). I've
>>>> tried the other AP modes and still nothing. I just don't understand what
>>>> changed in a week. This is the one system I haven't wired because of
>>>> it's location and so far I've not had trouble with it.
>>>>
>>>> At this point, I'm tempted to try Gentoo on it and see if that makes a
>>>> difference, just to make sure it's not some weirdness with Linux in
>>>> general with that card.
>>> You might try the following:
>>>
>>> * Open system-config-network.
>>> * Delete all wireless interfaces and devices.
>>> * Reboot, and let the hardware detector re-detect them.
>>> * Try connecting again.
>>>
>>>
>> Yep. Tried that too. No go. It's the craziest thing.
>
> Did it get rid of the multiple copies? Did it correctly detect the
> cards?
It did. Until a second reboot. Then they came back.
>
> Do you have Windows on the machine, and does it work there? Does the
> Ubuntu or Knoppix live CD work? I came late to the thread, so did it
> work with older kernels? Does it work connecting with
> system-config-network, or ifup, or wpa-supplicant?
Yes I have XP on that box and the card works perfectly (gasp!) there.
I've never tried wpa-supplicant. This connection is totally open,
unencrypted since I live so far away from any of my neighbors. Unless,
of course the squirrels or deer in my woods has connectivity. :)
>
> A that point, I'd consider filing a bug. John Linville handles the
> wireless stuff, and he's usually been pretty responsive.
The problem is, I don't know what the problem is, so don't know what to
file.
>
> Wireless is a seriously tricky business. From what I've read here and
> on the fedora-devel, fedora-testing, and NetworkManager mailing lists,
> I'm not surprised that it's still kind of flaky on Linux. It's gotten
> dramatically better over the last couple of Fedoras, though.
--
Libenter homines id quod volunt credunt -- Caius Julius Caesar
Mark Haney
Sr. Systems Administrator
ERC Broadband
(828) 350-2415
Call (866) ERC-7110 for after hours support
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