I'm not sure if this will help but wort checking. I have the same problem with a template. After creating a machine from a template on the same network it never connected the LAN. What I had to do was to convert the template back to a machine and then edit the NIC setting. Just clicking on a different network and then putting it back to the network I wanted so it would register a change and review the VMX file.
I suspect that you have a machine with old network setting??
Hope that might help?!
Stuart
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