As you can see in the image I attached the only problem is 2 > 3. Even 3 > 2 works fine. Being different PC's they are different hardware, but it doesn't appear to be a hardware issue or the slowdown would show up somewhere else as well. I would certainly expect 3 >2 to show a slowdown, since it's between the same two PC's, but it doesn't. The problem is only between two specific PC's, and then in only one direction.
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