"I have not installed the restricted modules which include ipw3945d which some people have tried."
You have to install the l-r-m package to get working ipw3945. sudo apt-get install linux-generic This will make sure that upgrades always stay working for you. ** Changed in: linux-source-2.6.20 (Ubuntu) Status: Unconfirmed => Rejected -- ipw3945 module loaded but not active (no wifi) https://launchpad.net/bugs/76714 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs