After diagnosing the problem with a network engineer it appears that some routing software with in built dhcp server BANS specific mac addresses for a number of minutes if too many dhcp discovers are sent. Apparently dhclient sends on the wire too many dhcp offers for this particular brand of router.
-- [intrepid, hardy] Can't get DHCP offer without rebooting the OS https://bugs.launchpad.net/bugs/290489 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs