Skip to content
Pricing RU Sign In
RU

Port 28910 — Nintendo Wi-Fi Connection

By · Updated
Key idea:

TCP/28910 — the GameSpy master-server port used by Nintendo Wi-Fi Connection (DS, DSi, Wii, 3DS) for matchmaking. GameSpy official shutdown — 2014; Nintendo WFC — 20 May 2014. Community replacements: Wiimmfi (Mario Kart Wii), AltWfc. If you see 28910 in firewall/router logs, it's legacy gaming traffic, not a modern service.

Below: details, example, related, FAQ.

Try it now — free →

Details

  • GameSpy master-server protocol — matchmaking for dozens of legacy titles
  • Replaced by Nintendo Network (3DS/Wii U) — different ports
  • Wiimmfi, AltWfc — community-recreated servers on the same ports
  • Plaintext packets, no encryption
  • Blocking 28910 breaks no modern Nintendo service — only legacy devices

Example

# Check reachability (Wiimmfi test)
$ nc -zv wiimmfi.de 28910
Connection to wiimmfi.de (...) 28910 port [tcp/*] succeeded!

# A router ACL can allow/block the whole 28900-28920 range
# for legacy DS / Wii consoles

Related

Related guides

ICMP PingHost availability and latency
Port ScannerOpen TCP port detection
LatencyResponse time in milliseconds
Packet LossPercentage of dropped packets

Why teams trust us

ICMP+TCP
check protocols
14
key ports scanned
<2s
result
3
regions

How it works

1

Enter IP or domain

2

ICMP packets sent

3

Latency & packet loss shown

How Do Ping and Port Scanning Work?

Ping sends ICMP packets to a host and measures response time. Port scanning checks which TCP ports are open and accepting connections — helping diagnose serviceavailability issues.

Configurable Ping

Choose packet count (3, 4, 6, 10). Stats: min/avg/max latency and packet loss.

Common Port Scanner

Check 14 key ports: HTTP, HTTPS, SSH, FTP, SMTP, MySQL, PostgreSQL, and more.

Cloud-Based Check

Testing from our server — see site availability from outside, not just your local network.

Uptime Monitoring

Need constant monitoring? Create a monitor — checks every minute with notifications.

Who uses this

DevOps

availability diagnosis

Network engineers

TCP port scanning

Developers

connection debugging

SRE

basic health check

Common Mistakes

❌
ICMP blocked = server is downMany servers block ICMP. Ping fails but site works — check ports instead.
❌
High ping = server problemLatency depends on geography. 150ms between continents is normal, not an error.
❌
Closed ports — cause for alarmClosed ports of unused services are good. Unnecessary open ports are a risk.
❌
One check = sufficientNetworks are unstable. A single timeout ≠ a problem. Check multiple times or set up monitoring.

Best Practices

✓
Combine ping and port checksPing shows host availability, ports show specific service availability. Use both.
✓
Check from different locationsThe problem may be local. A cloud test shows the real picture.
✓
Close unused portsEvery open port is a potential attack vector. Keep only necessary ports open.
✓
Set up monitoringManual checks do not scale. Set up automated monitoring with notifications.

Get more with a free account

Ping check history, host availability monitoring and downtime alerts.

Sign up free

Related tools

TracerouteDNS LookupWHOISSSL Check

Frequently Asked Questions

Do I need to open it on a router in 2026?

Only if someone at home plays Mario Kart Wii via Wiimmfi or similar. Switch / Nintendo Online uses different ports.

Security?

Plaintext. Don't send credentials over it. For online games consider Cloudflare Tunnel / ZeroTier.

Which games used it?

Mario Kart DS/Wii, Animal Crossing Wild World, Pokémon D/P/Pt — all on the Nintendo WFC shutdown list.

Start monitoring for free

Sign up and get access to API, monitoring and notifications

Create Account API Documentation