I would not be so concerned about the duplicates - we had that a lot on our old boxes with no issues.
Anyways, as your have an OS already, can you see the virtual adapter itself on the VM ?
ok now I get what you are saying. How to fix this can be found here (https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/Power+Systems/page/vfc+login)