I can confirm this issue according to previous comments. I am using kernel 3.2 (3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux).
From my observations, the issue happens also when I am using a VPN trough OpenVPN.
I can confirm this issue according to previous comments. I am using kernel 3.2 (3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux).
From my observations, the issue happens also when I am using a VPN trough OpenVPN.