參見我上一篇文章:http://www.cnblogs.com/nevernet/archive/2012/06/09/2543012.html
問題發生在創建hyper-v虛擬網絡后。
解決辦法:
Using regedit, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters And on that key, make a new DWORD, and name it DisableTaskOffload. Set its value to 1. Reboot
或者:
搞定。