Setting a static IP address (IP=computer's assigned IP address, and Gateway=Router's IP address) in Network Settings fixes it for me, but DHCP should work. Perhaps it is an issue with DHCP, as somebody mentions that above too?
-- Ethernet interface not working after reboot https://launchpad.net/bugs/42608 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
