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Rev

Why would running `ipconfig /flushdns temporarily get things working on this computer? What's so weird is all the other systems on the network are fine and this computer used to be fine as well.
– g491
Commented May 16, 2017 at 2:09
@g491 That puzzles me too, but it's more concerning that once things get "working", they're really not working given that you're getting invalid responses to your query. You may find that solving this clearly evident problem also solves the more obscure issue of flushing the cache reviving lookups for a while.
– I say Reinstate Monica
Commented May 16, 2017 at 2:18
Did you figure out what is happening to your DNS queries?
– I say Reinstate Monica
Commented May 19, 2017 at 11:21
For time reasons we're just going to try replacing the networking equipment. I tried some stuff like Google DNS and didn't feel that there was a clear path to a solution. I awarded you the bounty for your high quality answer, and if this doesn't solve it, I'll plan to revisit and see if we can figure out what the deal is. Thanks
– g491
Commented May 20, 2017 at 19:38

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