1st. Get a raid together(Everyone in the raid must be unbound to whatever instance you are doing)
2nd. Clear the instance, kill the boss. When the epic chest drops NO ONE OPEN.
3rd. Have everyone but the raid leader type /camp. As soon as the 30 secound log out timer starts, CLICK EXIT GAME.(this will close AoC, and make the servers think something has happen and you lost connection to the server.
4th. The raidleader waits for everyones name in the raid turns grey. That means its safe for all to log back in game.
5th. After ppl start logging back in raidleader types /camp relogs. Now everyone should be unbound to the instance, loot the chest. REPEAT over and over. I have done Yakhmak like 17x in one day. Hes is very easy to farm for epic gear.