Red Hat Bugzilla – Bug 133500
wireless device configuration does not allow changes to channel or transmit rate
Last modified: 2008-05-06 20:00:51 EDT
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Description of problem:
I have a Symbol LA4111 Spectrum24 Wireless LAN PC Card and am using
WEP with it. For me to get this to work, I have to be able to change
the channel to 6 and the transmit rate to auto. By default, the
wireless device configuration GUI has channel 1 and transmit rate of
11Mbps, and these are not changeable through the GUI. To get my card
to associate and dhcp, I have to manually change
/etc/sysconfig/network-scripts/ifcfg-eth1 and change channel to 6 and
transmit rate to auto. Once I do this, the card works wonderfully.
Can you please enable these changes to be made from the GUI? If you
did, I believe that no CLI would be needed to get this wireless card
(are other cards having the same problem too?) to work with fedora.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. launch the network configurator
2. either edit an existing wireless device or create a new one
3. try to change channel or transmit rate
4. these GUI elements are disabled and the user cannot change the
values needing to be changed
Actual Results: wireless card is unable to associate to an AP that
does not operate on the same channel as the default, disabled one
Expected Results: user should be able to change these 2 form
elements, enabling him/her to specify what transmit rate and channel
the card should operate at.
If you change the "Mode" to "Auto" or "Ad-Hoc", you can specify the
channel and the transmit rate... Why do you need to set this in
well, I'll be darned. lol. I must have wasted a good day at least
trying to work around this. Had I only known that using "Auto"
instead of "Managed" would let me do this... it would have saved me
lots of time. =:/
This is from the iwconfig man page:
mode Set the operating mode of the device, which depends on
work topology. The mode can be Ad-Hoc (network composed
one cell and without Access Point), Managed (node
connects to a
network composed of many Access Points, with
(the node is the synchronisation master or acts as an
Point), Repeater (the node forwards packets between
less nodes), Secondary (the node acts as a
ter/repeater), Monitor (the node acts as a passive
only receives packets) or Auto.
iwconfig eth0 mode Managed
iwconfig eth0 mode Ad-Hoc
The topology that I'm in best fits the description of "Managed",
namely "node connects to a network composed of many Access Points,
with roaming". This is why I chose "Managed", and in fact, have used
Managed for quite a while with success in debian before I started
using fedora, when I iwconfig'd my card manually.
Is there a reason that transmit rate and channel should not be changed
when a card is in a managed topology? The user should still be
allowed to change these things, shouldn't he?
this is still a problem, and now is causing a problem with NetworkManager, I believe, since
NetworkManager only works for me if mode is set to Managed, which as noted above, isn't
configurable for me via the GUI. Is this being looked at anymore?
In managed mode, the card itsself searches for the ESSID on every
channel, so I thought this is not necessary..
Well, according to the iwconfig man page I quoted above, it sounds like a the very least, it
would be the correct thing to do, I thought. And, I can say with certainty that unless I'm able
to configure the channel and rate via the GUI config tool, my wireless card does not work.
Fedora Core 3 is now maintained by the Fedora Legacy project for security
updates only. If this problem is a security issue, please reopen and
reassign to the Fedora Legacy product. If it is not a security issue and
hasn't been resolved in the current FC5 updates or in the FC6 test
release, reopen and change the version to match.
Based on the date this bug was created, it appears to have been reported
against rawhide during the development of a Fedora release that is no
longer maintained. In order to refocus our efforts as a project we are
flagging all of the open bugs for releases which are no longer
maintained. If this bug remains in NEEDINFO thirty (30) days from now,
we will automatically close it.
If you can reproduce this bug in a maintained Fedora version (7, 8, or
rawhide), please change this bug to the respective version and change
the status to ASSIGNED. (If you're unable to change the bug's version
or status, add a comment to the bug and someone will change it for you.)
Thanks for your help, and we apologize again that we haven't handled
these issues to this point.
The process we're following is outlined here:
We will be following the process here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this
doesn't happen again.
This bug has been in NEEDINFO for more than 30 days since feedback was
first requested. As a result we are closing it.
If you can reproduce this bug in the future against a maintained Fedora
version please feel free to reopen it against that version.
The process we're following is outlined here: