Those built in cards do not respond to lanadmin change commands because they can not change.
The only thing you can try is setting in /etc/rc.config.d/hpbtlanconf
Its likely to produce an error and no network connectivity so make sure you have a console or something hung off the box.
I thought that card can go full duplex though, so I'd look at the switch setting as a possible impediment.
Attaching my hpbtlanconf, use it with care and a backout plan. Note mine is an example on a 100 BT card, modify appropriately.
SEP
Steven E Protter
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