Leitmotif: BT-R3 as VM in VirtualBox - no IP via DHCP, using wifi on host

[netfortius]

I read quite a few postings, all over, concerning issues with getting an IP via DHCP, when the host machine uses wifi, and BT-R3 runs as a VM inside Oracle's VirtualBox. Because my environment is different than some others (I use a macbook pro w/mountain lion and only wifi - as the new ones come out nowadays), who use windows, I believe that the common thread is:
- Virtual Box
- wifi on host
- BT-R3

Here is what I tried, so far:
- NAT or bridge mode for the adapter - no change
- wicd "fix-up" (as suggested on the BT site) - no change
- install BT-R3 on a wired (ethernet port available) older macbook pro -> BT-R3 gets an IP over DHCP; switching to wifi - no change

ifdown->ifup-ing the interface in BT reveals a never answered (no offer) to DHCPDISCOVER.
tcpdump-ing eth0 reveals actually NOTHING coming in and out of the interface.

Any ideas / suggestions?

TIA,
Stefan

[sickness]

This seems more like a VirtualBox issue.
Try:

dhclient eth0

Nothing much more that I can tell you since I don't use VirtualBox.