There an issue with a Windows update(for now only reported in Windows 2008 R2 and Windows 7) with VMware vmxnet 3 NICs, and possible E100e(Intel Pro/1000). Windows Update is convenience rollup update KB312557. What it does is that replaces the vmxnet3 nic Adapter with vmxnet 3 nic Adapter #2 and removes all IP Address information(if [...]