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I have a Hyper-V machine with one NIC card. I've set up a Virtual Network and provided connectivity to the guest OSs. The problem is that on restart of the host machine, i start up with no connectivity whatsoever (either for the host or the guests). I have to reconfigure the Virtual Network in the Hyper-V manager everytime to regain connectivity.

Am i doing something wrong? Is there a fix for this?

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What sort of hardware are you running this on? – Chris S Feb 28 '11 at 20:32

I've had success in a dev/QA environment running Hyper-V with only a single NIC, but Microsoft recommends in a production environment that you use dual NICs (at least) with one of them dedicated to the host server.

7 Best Practices for Physical Servers Hosting Hyper-V Roles

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