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Oracle Virtualbox made the NIC stop working on Server 2008 64-bit

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Last Modified: 2012-07-23
All,

I had installed Virtualbox on a Windows 2008 Server that already had Hyper-V installed. After researching I discovered that I couldn't run Virtualbox (kept getting error about VT-x not enabled) with Hyper-V installed because Hyper-V took control of the virtual features. I uninstalled Hyper-V and when I rebooted, the server wasn't on the LAN. Since I was remotely connected, this was a problem. I talked my client through uninstalling Virtualbox, reset the tcpip stack etc. It kept saying that there was an IP conflict on the network. I finally had her uninstall MS Security Essentials and after rebooting, everything worked again. So, thinking that Security Essentials was the problem, I reinstalled Virtualbox. I was disconnected again and haven't been able to reconnect since. I had her uninstall the network adapters, reinstall then uninstall Virtualbox but no joy. Same with resetting the tcpip stack and winsock again. There are no virtual adapters left even after having her show the hidden devices in Device Manager. The network connection now has the red "X" on it and says it can't connect to the network. I had her switch cables (just in case that was the problem) but the same outcome. The server is in a small office and is the DHCP / DNS / Domain controller and they are 6 hours from my location. I was hoping that one of you Guru's could point me in the right direction. I even had her remove all the related folders (Program Files\Oracle and the folder that I had put the VM's in), I am guessing that the uninstaller left some remnant behind in the registry but I don't have a clue as to where it may be. Any help would be greatly appreciated ...

Thank you in advance
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