If you lose service console connectivity after adding a new network adapter, you must use the service console to rename the affected network adapters. Adding a new network adapter can cause loss of service console connectivity and manageability by using the vSphere Client because of network adapters are renamed.


Log in directly to the ESX host’s console.


Use the esxcfg-nics -l command to see which names are assigned to the network adapters.


Use the esxcfg-vswitch -l command to see which vSwitches are now associated with device names no longer shown by esxcfg-nics.


Use the esxcfg-vswitch -U <old vmnic name> <vswitch> command to remove any network adapters that were renamed.


Use the esxcfg-vswitch -L <new vmnic name> <vswitch> command to add the network adapters again, giving them the correct names.