<time> (lmgrd) "g" not a valid server hostname, exiting
<time> (lmgrd) Valid server hosts are: "hostname"
<time> (lmgrd) Using license file C:\Program Files\ESRI\License\arcinfo.lic"
Your TCP/IP installation, network card or MS Loopback adapter are not functioning correctly. TCP/IP requires a network card or MS Loopback adapter to be installed.
You might also need to update your LMHOST file if it is out of date.
Check your network card to confirm that a network card or adapter is listed.
Check the host name to confirm it matches the Computer name.