Okay - after a bit of playing around, I have discovered that: * Dapper 6.06 LTS (without NM) cannot talk to the Internet properly at an MTU of 1450 * Dapper 6.06 LTS (without NM) cannot talk to the Internet properly at an MTU of 1000 (email checking times out, loading the first webpage takes far too long etc.) * That same machine works fine at both MTUs with Network-Manager-Gnome * A different machine (running knetworkmanager on Gentoo) does not work at an MTU of 1450 but does work perfectly at 1000.
-- Internet connection does not work if the MTU is set too high https://launchpad.net/bugs/18813 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
