When I find users running VMWare on a Mac and complaining that the networking is hard to figure out, I grab their laptop and pound it on their knuckles.
Which never really hurts, because the damn things are so light.
Remind me to keep my knuckles away from you although I'd probably be safe, I've found the networking to be a breeze so you wouldn't likely find me complaining about it
I run the exact same setup and had one of the CLX's on the remote network randomly stop talking via VPN recently. Turns out the refrigeration guys had decided to spend thousands of dollars putting in a wireless modem so they could remotely access their plant, and had changed the gateway address to their router. I rang them up and explained that they'd wasted all that money, gave them the VPN details, they changed the gateway back and all good again!