[DDOS protection problem]

DDOS protection block me from the game again. My id: TheTartanArmyLychen

[Problem with server]

I clicked on the marathon-eu2 (or eu1) server in the multiplayer mode to join, but there was no response, and the screen stayed on the front end menu (Skirmish/Multiplayer/Settings/Extras). But if click on marathon I can join. What cause this problem?