Fix Nintendo Switch Error 2618-0513 Online Play Not Working (2025)

Updated: 11/29/2025

You try to join an online match on your Nintendo Switch, the loading screen spins, and then you get a pop up with Error Code 2618-0513. Sometimes you reach the lobby and disconnect right before the game starts, other times you cannot connect at all. This error usually means your network is not good enough for peer to peer connections, often because of strict NAT settings, router issues, or unstable internet rather than a problem with the game itself [web:12][web:9].

Table of Contents

Method 1: Test And Stabilize Your Internet Connection

If your Switch is far from the router or separated by walls, bring the console closer to the router while testing online games, or use a wired LAN adapter in the dock for the most stable connection. A strong signal reduces packet loss and jitter, which are key reasons peer to peer matchmaking fails with this error code [web:12][web:9].

Method 2: Improve NAT Type And Router Configuration

If you are using mobile data, some carriers place customers behind Carrier Grade NAT, which can break direct connections between players [web:9][web:18]. Whenever possible, switch to a home broadband connection, and if you must use mobile service, talk to your provider about options for a public IP or gaming friendly plan.

Warning: Be careful when changing router settings, write down your original configuration first, and only forward ports to devices you trust, exposing random devices can create security risks.

Method 3: Adjust DNS And Contact Your ISP If Needed

Call your internet provider support line and explain that your Nintendo Switch is showing Error 2618-0513 and that tests point to a NAT or routing problem, then ask if they can provide a public IPv4 address, bridge mode for your modem, or advice on optimizing for online gaming. Many ISPs have gaming profiles or can remotely change settings that ordinary customers cannot see, which can quietly resolve persistent matchmaking failures [web:12].