I have the same problem with my Sony Vaio VGN-N21S
$ uname -a Linux sincity 2.6.27-4-generic #1 SMP Wed Sep 24 01:29:06 UTC 2008 x86_64 GNU/Linux
$ lspci | grep Atheros 06:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
I have the same problem with my Sony Vaio VGN-N21S
$ uname -a
Linux sincity 2.6.27-4-generic #1 SMP Wed Sep 24 01:29:06 UTC 2008 x86_64 GNU/Linux
$ lspci | grep Atheros
06:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)