Please confirm that How to check the basic functionality works fine on your environment. It's a first thing you should test.

I tested it and it's all working fine except for the game. Every time I chose one of the Brazilian nodes, the game stops working.Any other node works fine but it doesn't reduce my ping. This issue happens every time I use a Brazilian node, be it on basic mode or advanced.

Not sure why at this moment.  It could be that the game publisher blocked the mudfish nodes.  However did you try to change Connection Protocols to TCP protocol based?  Not sure that it works.

I tested it. TCP actually allows me to run the game using Brazil nodes, but the latency gets extremely unstable, going from 194ms to 260.Right now Mudfish is routing me through two nodes outside Brazil with UDP, with 195ms and the game is running fine, so I'm still guessing it's something with the BZ nodes.

In my humble opinion, it's little bit hurry to concluse that this issue is from BZ nodes.  It could be but I think we need to dig little bit more.  If you're familiar with WinMTR, please try to test against to 204.2.229.210 (game server).

Hey, I gave this program you said a test, let it run for a few seconds.These are the results http://imgur.com/a/xVd73. As you can see I tested another IP, because it's the IP from the datacenter I play (you see them here https://arrstatus.com/) and the last image is what happens when I try logging in with a BZ node. Never used this program so I don't know if it was enough or if I should've left running longer.

> As you can see I tested another IP, because it's the IP from the datacenter I play (you see them here https://arrstatus.com/) It's fine. :-)  However this screenshot is got while Mudfish is applied, right?  Which mudfish node did you use? > the last image is what happens when I try logging in with a BZ node. Was it TCP based Connection Protocols enabled at that moment?  It seems it got a hang.

I was using an advanced node from BZ Azure to US West (Los angeles) if I recall correctly, was supposed to give me around 193-195ms (though any BZ node would give me the issue).And at that moment it was UDP enabled. If you want I can try running with TCP enabled and try again. For now I'm using basic nodes from US West so I can get around 200ms just so I don't suffer any latency spikes.