i feel you. The problems started before dawntrail. I'm not sure if the problems stem from the same root issue or not so I cannot say if it is the devs unsuccessfully trying to solve it. Well, I'll try the VPN later for sure.
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Here's the MudFish Guide for you!
Once everything's set, just make sure you turn it on before you open the game, and then turn it off when you're done. I truly hope it helps. It saved me when nothing else would work for me.