You may experience strange problems (at least they seem to be at the first glance) with networking on your machine which is running in VMware Player.
For instance, your virtual machine has
We have just finished upgrading our VMware -- vCenter Server, ESX on our hosts and virtual machines to the forth version. We expected to spend all weekend on this, but it turned out we managed to upgrade in just about 5-6 hours! And that is without any previous serious experience with VMware! Well, yes, we have only two hosts, no cluster and just about 20-25 active virtual machines. But anyway. We had some problems on our way, but generally installation was not that complicated.