Ethernet connection is not visible.

Hi,

I am using vmware player 7.1.0 in windows 7. I installed ubuntu in it, with internet NAT setting it's working fine when I created. But once in a blue it stop the ethernet connection when starting my VM, from then ethernet connections are missing. I got this bug twice.

I checked with another os in the same vm they are working fine.

Please help me how to get ethernet connections back.

Kiran