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.

1

Log in directly to the ESX host’s console.

2

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

3

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

4

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

5

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