Can't connect to WEP-encrypted networks using "Shared Key" because "Open System" is always used instead

Is this bug connected to KNetworkManager?
I previously used wlassistant to connect.
Under Feisty, wlassistant 0.5.5 works well, while under gutsy, wlassistant 0.5.7 does not work.
It seems that 0.5.5 used the command:
iwconfig wlan0 essid MYESSID key s:MYKEY
while under 0.5.7 it does not use it correctly: it uses a different technique that I cannot remember.
I think it is a wrong use of iwconfig bug of KNetworkManager, not a driver problem.

I tested:
TRENDnet TEW 424UB (USB) with Realtek Chipset
Intel Wireless (can't remember the model).

I really don't know if this bug is connected to KNetworkManager, since I don't use KDE. Can anyone else confirm this (and my problem)? :)

I'm also getting this slightly different error when following the steps mentioned above, but with a 'freshly' booted machine:

SoftMAC: Open Authentication with 00:0e:a6:63:10:b5 failed, error code: 13

I don't know if this makes any difference, but the problem is just as annoying (having to type this in Windows because I can't connect using Ubuntu).

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please add your '/var/log/syslog' file as an attachment to your bug report? Thanks in advance.

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!.

What do you need more?
If you use a WEP-encrypted network with shared key authentication, it's impossible to connect.
At least, it does not work with KNetworkManager under Kubuntu.

I have this problem on Karmic beta, when trying to connect to a WEP network with shared key, NM keeps asking the key.
Editing connections, I see "Open System" is selected by default, manually changing it to "Shared Key" solves the problem.

This is wpa-supplicant log with the default settings:

Oct 25 12:32:25 endor NetworkManager: <info> Activation (wlan0/wireless): connection 'Auto MyNetwork' has security, and secrets exist. No new secrets needed.
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'ssid' value 'MyNetwork'
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'scan_ssid' value '1'
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'key_mgmt' value 'NONE'
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'auth_alg' value 'OPEN'
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'wep_key0' value '<omitted>'
Oct 25 12:32:25 endor NetworkManager: <info> Config: added 'wep_tx_keyidx' value '0'

and after configuration change:

Oct 25 12:32:49 endor NetworkManager: <info> Activation (wlan0/wireless): connection 'Auto MyNetwork' has security, and secrets exist. No new secrets needed.
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'ssid' value 'MyNetwork'
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'scan_ssid' value '1'
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'key_mgmt' value 'NONE'
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'auth_alg' value 'SHARED'
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'wep_key0' value '<omitted>'
Oct 25 12:32:49 endor NetworkManager: <info> Config: added 'wep_tx_keyidx' value '0'

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't start working on it yet, because your bug report didn't include enough information.

Using Karmic 9.10, please include the information requested at https://wiki.ubuntu.com/DebuggingNetworkManager. If you have trouble, please do not hesitate to ask for more assistance. Thanks in advance.

Here is the full syslog, intermixed with the action performed. The network is a WPA protected network, with shared key.
When selecting the wireless network the first time, the key is asked but Authentication is set to "Open System" by default (while "Shared key" is the right setting).

I ve been trying for hours and hours to access wireless no trouble ethernet wired or vodaphone mobile but it will not connect to livebox tried taking of live box security tried loads of commands and still no luck seems a serious bug to me and a fatal one to ubuntu for anyone with laptop or netbook as you can only use it with wired connection
kai

I am at present trying to follow question #93070 where all info stored for your information
kai

Thank you for the update and supplying the information. This has now been marked Triaged, which means there should be enough information for a developer to begin debugging this, so I am leaving it in their capable hands. Thanks again for reporting this to us, and good luck! :)

Is this still a bug in Precise?

Sorry, I don't have access to that specific network anymore (for several years now). But I guess it would be easy enough for anyone with some spare time (which I currently lack completely) and a WiFi accesspoint to configure it to use WEP and try to connect?