i set up an ESX server and everything was just great till i went to the configuration and i changed the speed of the vmnic0 from 100 to 1000 mbps. Since then i cannot ping the server and when i run the ethtool but is shows on the vmnic0 that no light detected, When i physically check the server the light is on (on the nic card) but when the kernel loads the light goes off.
I tried to change the speed manually via ethtool -s vmnic0 speed 100 duplex full
but it did not do the trick..
Any ideas ?