On the covered Nintendo Switch console, 2618-0516, 2618-0513, 2618-0514, 2618-0515, 2618-0519, 2318-0510, 2318-0513 to 2318-0514, 2321-0000 to 2321-9999, 2618-0583, 2318-1500 means the console could not open a direct connection to the other players, which Nintendo ties to the network's NAT type, latency or the kind of internet service First, run the console's connection test and note the NAT type, download speed and upload speed.
Differential
Likely causes of “Nintendo Switch console codes 2618-0516, 2618-0513 and 8 more”, and how to tell them apart
- 1
A NAT type that blocks peer-to-peer connections
What separates it The connection test shows a NAT type toward the low end, and the failure happens with every player or one specific player
How to confirm Run Test Connection and read the NAT type, which runs from A, the best for peer-to-peer, to F, unable to complete it
- 2
An internet service type that is not recommended
What separates it The connection is a phone hotspot, 5G, cellular or satellite service
How to confirm Try cable, DSL or fiber; Nintendo says mobile hotspots and 5G networks may prevent peer-to-peer connection
- 3
High latency making matchmaking time out
What separates it The connection is slow or crowded, and the failure comes and goes
How to confirm Read the download and upload speeds from the connection test and retry when the network is quiet
- 4
An IPv6 setting or router feature interfering
What separates it The code is 2318-1500 or 2618-0583, or the router is a Buffalo model
How to confirm Turn IPv6 off for the connection, or enable the router's Privacy Separator feature where Nintendo says it may help
- 5
A problem with the other players' connections
What separates it Failures happen with specific players or in specific lobbies
How to confirm Try a different lobby or player; 2618-0514 says several players may have poor connections
Before you touch a setting
Record this first — changing settings destroys the evidence
- The exact code and the message, including whether it mentions the other console or consoles
- The NAT type, download speed and upload speed from the connection test
- The internet service type and router make and model
- Whether the failure happens with every player or only with one
Try in this order
0 of 8 completedWhat to do first
Reversiblerun the console's connection test and note the NAT type, download speed and upload speed.
Correct only the documented fault domain
ReversibleTry again a few times, use a wired connection or a recommended service instead of a phone hotspot, work through the NAT steps on the router, turn IPv6 off for the connection where the code asks for it, and check for router privacy separator settings.
Try matchmaking again
ReversibleNintendo says that for 2618-0513 you may connect after simply trying again, so retry a few times before you change anything.
Run the connection test and record the NAT type
ReversibleOpen System Settings, Internet, Test Connection. Note the NAT type (A is best, F cannot do peer-to-peer) and the download and upload speeds.
Try a network that uses a recommended service
ReversibleUse cable, DSL or fiber rather than a phone hotspot, 5G or satellite. If the match works there, something on the original network prevents peer-to-peer and your provider is the next contact.
Check the network status page
ReversibleFor 2318-0201, 2318-0510 and 2318-0513 Nintendo asks you to review maintenance first; there is nothing to fix during a posted outage.
Turn IPv6 off where the article says so
ReversibleOpen Internet Settings, select your network, Change Settings and toggle IPv6 Connection off, then test again. Nintendo lists this for 2318-1500 and 2123-0011.
Update the game and try the router feature for 2618-0583
ReversibleMake sure the game has the latest update and, on a Buffalo router, enable the Privacy Separator feature as Nintendo suggests, or use another router or access point.
Every code on this page
What Nintendo's article says about each code
Nintendo publishes a separate article for every code below, and the fix on this page is the fix all of them share. The line beside each code is what that code's own article adds: the message, the situation, or the one step that differs.
- 2618-0516
- Unable to complete match-making; your network is not optimal for peer-to-peer connections, likely because of its NAT type.
- 2618-0513
- Match-making fails; the internet provider, connection speed or NAT type is at fault, and mobile hotspots and 5G networks may block peer-to-peer.
- 2618-0514
- "Unable to connect to the other console(s)"; several players have a poor connection, from NAT type, high latency or an unrecommended internet service.
- 2618-0515
- Match-making fails, likely because of the NAT type; if it happens every time or with one player, follow the NAT steps.
- 2618-0519
- Match-making fails on the same NAT-related grounds as 2618-0516.
- 2318-0510
- "Unable to connect to the other console(s)"; check network status, then troubleshoot NAT issues.
- 2318-0513 to 2318-0514
- Error codes 2318-0513 and 2318-0514; check network status and troubleshoot NAT issues.
- 2321-0000 to 2321-9999
- A range 2321-0000 to 2321-9999 in games such as Monster Hunter Rise; if you cannot play online matches consistently, your NAT type may be too strict.
- 2618-0583
- Unable to play a game online; update the game, try another router or access point, and on a Buffalo router turn on the Privacy Separator feature.
- 2318-1500
- Trying to connect online; check status, then try turning IPv6 off for the connection.
Stop boundary
When this stops being a self-service repair
- !Router NAT, port and firmware settings belong to your router's maker or your internet provider; ask them before changing router settings
- !If a different network fixes the problem, Nintendo says something on the original network prevents peer-to-peer connections and your provider should be contacted
- !If the code persists on every network, contact Nintendo Support with the code and connection test results
Evidence ledger
Sources behind this answer
Where the manufacturer's article stops. These articles cover the console failing to set up a peer-to-peer connection or a match. Nintendo's separate NAT troubleshooting article, which holds the router-side steps, was not part of this page's sources, so the router advice here stops at what the code articles themselves say and at what the connection test reports.
Exact questions
Common questions
What does 2618-0516, 2618-0513, 2618-0514, 2618-0515, 2618-0519, 2318-0510, 2318-0513 to 2318-0514, 2321-0000 to 2321-9999, 2618-0583, 2318-1500 mean on a Nintendo Switch console?+
the console could not open a direct connection to the other players, which Nintendo ties to the network's NAT type, latency or the kind of internet service
What is a NAT type?+
It is the result of the console's NAT test, from A, best for peer-to-peer communication, to F, unable to complete peer-to-peer communication.
Will a phone hotspot work for online play?+
Nintendo says certain network types, like mobile hotspots and 5G networks, may prevent peer-to-peer connections.
Why does one player always fail?+
Nintendo says receiving the error when connecting with a specific player suggests NAT-related issues between your network and theirs.
Does 2321-0000 to 2321-9999 also mean NAT?+
Nintendo says that if you cannot play online matches consistently in games such as Monster Hunter Rise, your NAT type may be too strict.