ESXi 5.1 host accepts no network connections
/etc/init.d/usbarbitrator stop
5) Connect your USB flash drive to the server. The drive will then be mounted under the following: /vmfs/volumes/NO NAME/
6) Copy the zip file to
/vmfs/volumes/datastore1 cp /vmfs/volumes/"NO NAME"/ESXi500-201207001.zip /vmfs/volumes/datastore1
7) Just for good measure, while in the datastore1 directory, verify ownership is root and chmod 777 if you have problems with the next step.
Also verify the file size is the same from the source to the destination directory.
8)Run the following command:
esxcli software vib install -d /vmfs/volumes/datastore1/ESXi500-201207001.zip -n net-e1000e
9)Reboot. (Alt+F2 to return to ESXi menu)
10)Test network connections. (Success)