I have few VMs with Ubuntu 12.04 nad 12.10 and I'm using them in different networks (at home and at work). At work I'm using wireless connection and at home I have cable.
I'm using bridged mode and ubutnu can't handle it very well, because sometimes VM gets IP address, but I can't ping anything in the internet or even in my local network network. Both cards support bridged mode. Host is Windows 7 64bts. VMs are also 64 bits. Sometimes when I'll reboot VM, everything seems ok.
- I'm starting Ubutnu VM at work and internet connection is working. Everything is fine. Bridged adapter is wireless card.
- I'm going home and launch this same machine, but before that I change bridge adapter to my cable network card.
- VM gets IP address, everything seems ok, besides network is not working. I can't even ping my router and I got IP from it (DHCP).