Getting Parallels NAT to work with locations other than Automatic

I travel around a lot, and so I have a lot of different network locations set up in System Preferences. The problem is that Parallels NAT doesn't seem to work unless the Automatic location is selected. I tried activating EN3 in Network Port Configurations for my locations, which seems to be what Parallels uses as the external NAT interface, but it didn't help (I tried rebooting).

Has anyone gotten Parallels NAT to work with multiple locations?

/Ted

 

Ops, I just realized I'd made a stupid mistake. I had Host-Only networking selected for the virtual machine. When using NAT it works perfectly.

That might mean that the problem exists with Host-Only networking though. I use Internet Sharing to share the connection using the built-in Ethernet of my MB with en2. When using automatic, it works, but not with other locations (I have enabled en2 for all locations, and all locations I've tried use the built-in Ethernet).

/Ted