Quote:
Frequently these kinds of things can be traced down to problems with the firmware on routers and switches

I'm calling bullshit on that one. Switch firmware can cause a Windows machine to choose the wrong domain controller? I don't think so. I guess maybe if it was somehow preventing connectivity to all of the correct ones, Windows might fall back to a remote one, but he clearly says he had connectivity, albeit slow. And the problem was resolved with a Windows tweak.
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Bitt Faulk