Here is the Export from the Advanced IP scanner - I selected the computer from the list and exported as text. I edited it a bit in notepad to get it to fit this window.
IP Status Name Ping time
126.96.36.199 Alive cpeserv.cpe.surrey.ac.uk 1
NetBIOS user name NetBIOS computer name NetBIOS group name
CPESERV CPESERV CIV
MAC adress Comment
So you can see that it has CIV listed as the group name. Now maybe I am missing something but I thought the Netbios groupname would be the group that the machine in configured in under Control Panel/Network settings.