If you are having problems with your network card being recognised, but unable to connect to your router (e.g. if your card has been assigned an IP address, but 'may not be able to connect to the network', or if you have assigned your IP address manually but can't even ping your router), then.....
Try booting without the 'platform=x86pc' option. This worked for me, albeit at a performance cost.
Good luck!
