Your connection path to the EU servers is different than the path to the NA servers installation. If there's something blocking your connection to the NA servers only, you will still be able to access the EU servers without much difficulty.
navigatorsyste replied to terox's topic in ARMA 3 - SERVERS & ADMINISTRATIONHI, For Installation & Configuration of ArmA3 Dedicated Server support team always with you. We are provide server support, server maintenance, server repair services for out clients. For installation ArmA3 server follow some steps like TADST.exe, Run TADST.exe to create setup folders,Click "Server File" and choose arma3server.exe which you installed earlier, Installing BattlEye Extended Controls, Configuring BattlEye and Server.