Found this thread on Google. Not using Ubuntu but rather Fedora Core 6 with newest madwifi.org driver for atheros chipset on a D-Link DWL-G650, same problem
It doesn't seem to be a problem with Ubuntu, Debian or Fedora. It seems like it may be a problem with either the Network Manager or Madwifi driver itself. Hope that helps. -- Atheros WLAN (MadWifi) poor signal strength https://bugs.launchpad.net/bugs/66481 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
