[Feisty regression] Wifi with zd1211rw limited to 11Mb/s

Here goes the output from /var/log/messages after the USB device is attached.

And here is the output from dmesg.

Confirm the issue. Same kernel as above with a Safecom SLWU-5400 dongle that has the zydas zd1211 chipset. Networking works out of the CD, but at 11MBps. Is this a fault of the driver or is it stuck at 11MBps until 802.11g can be developed for the driver?

Attached is dmesg output

Could you try this:

sudo iwconfig eth1 rate 54M

as it comes here:

https://answers.launchpad.net/ubuntu/+source/network-manager/+question/6910

Hi everybody,
How should i do to get that wireless config after doing that (sudo iwconfig eth1 rate 54M)? Since every time i change the connection or reboot the computer the rate decreases to 11 mbps.

Cheers

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 this particular version of the kernel. 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.