YMMV Forcing a NIC to negotiate at a certain speed/mode is simple, as long as you have the right tools at hand. After trying 4 different packages in Ubuntu with mixed results, I got a killer combo. root@coiso:~# ethtool -v ethtool version 6 ethtool eth0 ethtool -s eth0 speed 1000 autoneg off ethtool -s eth0 [...]