Still no fix for this error? I can only play 10 seconds at a time on each server. It's annoying. Don't come with bulls**t like update your internet time cuz that's just not working. Cheers.

get a better NAT device then, or provide repro steps that will allow me to debug and fix it

How to do that repro step thing? Sorry for my dumbness...

The problem is with your router. A friend of mine had that problem, he brough his computer to my place and he managed to play right away (the only thing that changed was the router, since we even have the same ISP, just that I bought my own router to end up with those ports problem craps)

By the way, I already asked you on the portuguese section what's your router (waiting for you to tell me that it's a Tompson)