WiFi adapter using prism drivers stops working, requires reboot

Thanks for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it, because your description doesn't yet have enough information.

Please include the following additional information, if you have not already done so (please pay attention to lspci's additional options), as required by the Ubuntu Kernel Team:
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2. Please run the command "dmesg > dmesg.log" and attach the resulting file "dmesg.log" to this bug report.
3. Please run the command "lspci -vvnn > lspci-vvnn.log" and attach the resulting file "lspci-vvnn.log" to this bug report.

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Thanks in advance!
Thanks in advance.

I'd like to confirm this.

My machine has a fresh install of feisty with linux-wlan-ng installed.

My D-link DWL-122 shows up in both the network applet and the network config gui as a wired connection,
'iwconfig' says the device has no wireless extensions.

I was lucky enough to find out by accident that if I reconfigure the device using 'wlanctl-ng wlan0 lnxreq_ifstate ifstate=enable', it's wireless extensions seem to start working.

You can then configure the device using the network gui by turning off roaming mode (when you try to connect via the applet the device reverts back to a wired device).

So now I can connect with 'sudo ifup wlan0'.

I'll see what additional info I can get for you.

Awaiting detail information asked for in the comment by Kees Cook.

We are closing this bug report as it lacks the information, described in the previous comments, we need to investigate the problem further. However, please reopen it if you can give us the missing information and feel free to submit bug reports in the future.

Actually sometimes I am experiencing the same problem.
"uname -a" gives
Linux aldan 2.6.20-16-generic #2 SMP Fri Aug 31 00:55:27 UTC 2007 i686 GNU/Linux

find log files in attachment

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug does not meet the criteria for a stable release update and is being marked as Won't Fix for the kernel version the bug was submitted about. You can learn more about the stable release update process at https://wiki.ubuntu.com/StableReleaseUpdates .
However, the issue that you reported is one that should be possible to test with the live environment of the Desktop CD of the development release - Gutsy Gibbon. It would help us greatly if you could test with it so we can work on getting it fixed in the actively developed kernel. You can find out more about the development release at http://www.ubuntu.com/testing/ .
If you do decide to test with the development release of Ubuntu please comment on this bug report and include at least the minimal information requested at http://wiki.ubuntu.com/KernelTeamBugPolicies . Thanks again and we appreciate your help.