Sorry for all these comments, but I think I've got to the bottom of this issue! The problem here is that the driver does not work for "open" authentication, but does for "shared" (i.e. iwconfig key restricted) - I've just changed my D-Link router over to shared, and it worked fine!
-- [atmel] breezy->dapper wifi lost: signal power to 0 https://launchpad.net/bugs/34752 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs