Fixing a failed Hyper-V Guest Network Adapter

Sometimes you have a day when you think, “Why did I ever get into IT?”. Just when everything seems to be running smoothly an unexpected “blip” happens that seems to have no logical explanation. Then you remember that you sadistically enjoy solving these ambiguous problems and you start to dig.

spider-senseI had such a problem this morning when I get an email from our overseas office telling me that they can’t log in. No problem, I thought, just a simple password reset and all should be fine. I fired up remote desktop to get to the Domain Controller but it wouldn’t let me log in under my admin account. Suddenly my server-spider-sense started to tingle. I knew this wasn’t going to be a quick fix. Oh, and I should say the DC is a virtual machine hosted in Microsoft’s Hyper-V (2008 R2 edition).

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