Today I cannot play the game using my connection. So I tryed it in my friend’s home, and there I played with no problem.
After reading in the forrum, that somekind of device was blocking some IP adresses on the server, I came to the conclusion that the provlem is my dynamic IP adreaa given by my provider.
I use the OI VELOX provider, in Rio de Janeiro/Brasil and cannot connect to the server. My friend uses the GVT-VIVO provider, in the same city.
So my clue is that the non changeble part of VELOX IP adreas ia being blocker by the IMC/STEAM server SILUTE.
Now I ask u IMC guys to solve the problem.