Comment 62 for bug 1175091

I just wanted to add that I can also confirm this problem.
I checked the current default and desktop flavor of the openSUSE 12.3 kernel (3.7.10-1.16) on my Asus P53E laptop.

My LAN NIC is an
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)
powered by the atl1c kernel driver.

Interestingly, the problem disappears when I disable my WLAN interface (02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)) by unloading the ath9k driver or unchecking "enable wireless" in the network manager (the discussion in the kernel bugzilla (see comment 25) indicates that there seems to be a problem if another network driver is active in addition to atl1c).