What's at x.x.1.100? It looks like a dead or a bogus dns server. With the real one being at x.x.1.1 (Cisco).
You get a 5 seconds timeout on each DNS request. Double check /etc/resolv.conf? maybe set by dhcp. -- Network connection is slow on ubuntu machines https://launchpad.net/bugs/60977 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
