Decoding Elden Ring Error 218
Error 218 in Elden Ring occurs when the game’s network layer fails to complete the handshake sequence with FromSoftware’s game servers during an online session. This is caused by NAT type restrictions preventing the TCP handshake from completing, or by the PlayStation Network (PSN) or Steam API authentication failing due to outdated client certificates. Players can enter the game world but cannot interact with other players (summoning signs, invasion messages, or multiplayer sessions).
Why NAT Type Restrictions Block Elden Ring’s Online Handshake
Elden Ring uses a relay-based matchmaking system similar to Rocket League. When a player with a strict NAT type attempts to connect to another player, the relay server cannot establish the connection, and the handshake sequence times out, resulting in Error 218. The game requires all players in a session to have at least moderate NAT type to enable direct peer communication.
Resolving Network Communication Error 218
Configuring UPnP and Port Forwarding for Elden Ring
Enable UPnP on your router or manually forward TCP ports 24500–24560 and UDP ports 24500–24560 to your device’s local IP address. These are Elden Ring’s dedicated communication ports. After forwarding, check your NAT type in the game’s network settings menu. If the NAT type changes from Strict to Open or Moderate, the fix is successful.
Synchronizing System Time for PSN/Steam Authentication
Outdated system time can cause PSN and Steam certificate validation to fail, breaking Elden Ring’s online authentication entirely (not just peer connections). Open Settings → Date and Time → Set time automatically and ensure the correct time zone is selected. If automatic synchronization fails, manually set the date and time and try connecting to an online session.
Checking FromSoftware Server Status
Use the webs.ninja status engine to verify whether FromSoftware’s online infrastructure is operational. During peak hours or scheduled maintenance windows, Elden Ring’s online features are unavailable and Error 218 is infrastructure-driven. If the status engine shows no active incidents, the problem is local — apply the NAT and time synchronization fixes above.
Call to Action
Before attempting port forwarding or NAT fixes, use the webs.ninja status engine to run a connectivity diagnostic that tests your ability to reach Elden Ring’s matchmaking servers from your current network. The diagnostic identifies whether the problem is your NAT configuration, your ISP’s routing to FromSoftware’s servers, or a server-side matchmaking outage.