@Paolo: To put eth0 under control of ifupdown instead of NetworkManager, do the following in a terminal.
* Edit /etc/network/interfaces sudo nano /etc/network/interfaces to add these two lines auto eth0 iface eth0 inet static and save the file. * Restart network-manager sudo restart network-manager * Bring up eth0 with ifupdown sudo ifup eth0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1016080 Title: slow wired connectivity after upgrade to 12.04 -- Broadcom BCM5761, tg3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1016080/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs