2. The Relic Online Service
From Relic Mod Wiki
The Relic Online service is a PEER-TO-PEER system. This means you need to be able to connect to EVERY PLAYER in a specific game to join yourself. Relic Online is a matchmaking system, and only functions as a game broker. Lag and connectivity issues are always caused by the players you connect with, not the game.
Follow this guide to troubleshoot your problems and send it to others so they are properly configured as well.
