I appreciate you taking the time to write all that but a simple I am not sure because I do not know what hardware your running would suffice.
On the contrary, it makes no difference what hardware, physical or virtual, you're running and the point of what I wrote was not just for your benefit only. It was so that others having a similar issue would have additional information to look at the problem from a different perspective then they might be looking at it.
The bottom line I have found that when I boot a Virtual Machine in Fusion or Workstation and or some other VMware product for that matter with a
Knoppix CD/DVD or ISO Image and specifically “KNOPPIX_V5.1.1CD-2007-01-04-EN.iso” and enumerated and tested the Virtual Hardware Layer and Network/Internet Connectivity through the Host and the virtual hardware and connectivity was without issues the source of the problem was in the Software Layer and while once in a while VMware Tools came into play in the resolution that was the exception and the real issue more often then not was in the Guest OS and or additional non-VMware software.
One thing I've found out over the years is that Users that don't know any better always want to immediately blame the VMware product (or whatever product is in question) for the source of their issue and that not to say it isn't at times as obviously all products have some issue of some sort at some time on different systems. Regardless of where the issue lies and whether or not an obvious error is being shown there are many tools and way to diagnose where the issue lies however sometimes it cost prohibitive to spend to much time on a particular issue and that is why having appropriate backups from which to recover and or just starting over sometimes is the best solution to an elusive issue.
Anyway, I hope you resolve your particular issue in this case without having to start from scratch. Good Luck!