Game Client Configuration
Before making changes to your configuration, make sure to shut down your game. Once you have located the configuration file, open it with a text editor of choice and find the [IpDrv.MasterServerLink] section. In this section, you replace the old Epic Games entry (red) with two of the 333networks-affiliated masterserver entries (green):
LANPort=11777
LANServerPort=10777
MasterServerList=(Address="ut2004master.epicgames.com",Port=28902)
MasterServerList=(Address="ut2004master.333networks.com",Port=28902)
MasterServerList=(Address="ut2004master.errorist.eu",Port=28902)
Remove the line containing ut2004master.epicgames.com. Epic Games ceased their services in 2023 and the domain no longer resolves to a masterserver.
Insert entries for 333networks and errorist (green).
Note that UT2004 only uses one of these entries at will. 333networks and errorist synchronise their entries so you always receive all servers.
Restart your game client. The first time that you restart the game client, close and re-open your configuration file to see if the changes persisted.
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