The Arc Raiders online connection error ARRT0003 appears when the game cannot keep a stable connection to its servers. It can show up at login, during matchmaking, or in the middle of a raid. Whether you earn XP to level up or skip the grind by buying accounts for sale; this can be a troublesome issue.
The cause of the error is not always on your side; it could be that the game servers are under too much strain. Other times, the issue could be connectivity (ARC Raiders needs a constant internet connection) or a blocked port. Client-side issues can also lead to this error, along with other problems like the game crashing on your PC.
What ARRT0003 Actually Means
ARRT0003 is a general ‘online connection’ failure. arc raiders online connection error arrt0003 occurs when the game client cannot maintain a stable connection with backend services. Server outage issues, packet loss, firewall blocks, or anti-cheat handshakes can all interrupt the connection.
The design of ARC Raiders makes the issue feel worse. The game depends on constant communication with servers for raids, progression, and loot tracking. Even a short interruption can end a session or remove rewards. Because of this, the error often feels sudden and alarming. Everything works perfectly one moment, and the next, the connection drops, and you are booted mid-raid.
Common Situations Where Players See It
Many players report ARRT0003 during peak hours or large updates. Heavy server load can cause disconnects even when your own internet works fine. Some players also notice it after disconnects during the time they are in the queue, waiting to join another raid. This error pops up immediately after you die or extract, too. In cases when a cloud service like GeForce NOW is involved, you might face this error because of the additional networking layer.
Practical Solutions for Fixing ARRT0003
Because this is a frequent error, ARC Raiders players have managed to find some practical fixes and workarounds to resolve this issue.
Allow Easy Anti-Cheat (EAC) to Run Without Hindrances
The most common cause for this type of error is your own computer system’s security features getting in the way. ARC Raiders uses kernel-level protection known as Easy Anti-Cheat or EAC which must be allowed to run properly and connect with the servers as you start the game. Your PC’s firewall or anti-virus software can disrupt it and break that connection.
For PC users, gamers need to allow the game through Windows Defender Firewall as this Windows-native security feature can quietly block the game or its anti-cheat component.
Shut Down VPNs and Proxies
ARC Raiders’ security features often clock VPN IPs as ‘suspicious’. As the EAC is picky about unusual routing, it is better to close any VPN clients that are running and exit them from the system tray. Turn off any proxy settings in your system, too.
Other solutions include:
- Restarting the game, platform, and router to reset the connection handshake
- Switching between Wi-Fi and Ethernet to rule out routing problems
- Flushing DNS to improve routing to game servers
Once the connection is stable again, you can focus on progressing as you normally would, and even choose coins boosting to farm coins without the extra grind.
Conclusion
ARRT0003 is frustrating, but its cause is usually traceable. The error means that the game lost its link to the servers, because of local network issues or server strain. Start with simple fixes and once you understand the root cause of this error, you will be able to eliminate it.
