I had the same problem (bit rate locked to 1 Mbps) and then installed linux-next compat-wireless release (from today, 2010-06-05) as suggested in comment 3. This seems to fix the problem for me.
linux-backports-modules-wireless-karmic-generic version 2.6.31.22.35 did not solve the problem though. -- Problems with ZyDAS wi-fi dongle https://bugs.launchpad.net/bugs/478478 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs