# How to Use WinMTR for Gaming Troubleshooting

Source: https://urbanx.co.za/knowledge-hub/gaming-performance/winmtr-gaming-troubleshooting

**Answer:** WinMTR is a diagnostic tool that continuously tests latency and packet loss across every hop between your device and a game server. Run it for 5–10 minutes, identify where packet loss or latency begins, and determine whether the issue is LAN, ISP routing, peering, or international transit.

Part of [Gaming Performance & Low Latency](https://urbanx.co.za/knowledge-hub/gaming-performance) · 7 min read · by UrbanX Network Engineering

## What WinMTR Does (And Why It Is Better Than Ping)

A normal ping test shows latency to one destination. WinMTR combines ping (latency measurement), traceroute (hop-by-hop path visibility), and continuous testing over time.

For gamers in South Africa, this is critical because it allows you to detect packet loss, identify jitter, see routing path (local vs international), and determine whether latency begins at your router or upstream.

Most major gaming infrastructure is hosted in Johannesburg. CPT players route to JHB before reaching local servers. WinMTR reveals whether traffic remains local or exits via international transit.

## When You Should Use WinMTR

- Sudden ping spikes
- Inconsistent latency
- Packet loss warnings in-game
- Rubberbanding
- High latency despite good speed tests
- Speed tests do not diagnose routing instability

## How to Run WinMTR Properly

1. **Step 1: Connect via Ethernet**
   - Do not test over WiFi.
   - Use direct LAN connection.
   - Close background downloads.
   - Ensure no active uploads.
   - Testing over WiFi can produce misleading jitter.
2. **Step 2: Choose a Reliable Destination**
   - You can test toward a stable South African host or a known game server IP (if available).
   - Avoid random international hosts unless diagnosing international routing.
3. **Step 3: Run for 5–10 Minutes**
   - Start WinMTR.
   - Let it run continuously.
   - Do not stop after 20–30 packets.
   - Short tests do not reveal intermittent packet loss.
4. **Step 4: Interpret the Columns**
   - Focus on: Avg (Average Latency), Worst (Maximum Latency), Loss % (Packet Loss).
   - Ignore single spikes unless persistent.
5. **Step 5: Identify Where the Problem Begins**
   - Use the interpretation table below.
   - Important: packet loss must continue through downstream hops to be considered real.
   - If loss appears at one hop but not at the next, it is likely ICMP rate limiting.

## WinMTR Interpretation Guide

| Symptom | Likely Cause | Action |
| --- | --- | --- |
| Packet loss at Hop 1 | LAN/router issue | Use Ethernet / check QoS |
| Loss begins early ISP hops | Routing issue | Provide log to ISP |
| Latency jump after SA | International routing | Server region issue |
| Loss only on final hop | ICMP filtering or server policy | Not always real loss |

## Understanding ICMP Filtering

Some routers de-prioritise diagnostic traffic. This can show artificial packet loss at a hop, but no real loss continues afterward.

If packet loss does not persist to the final hop, it is not affecting gameplay.

## Detecting Local vs International Routing

In South Africa, efficient routing shows stable mid-route hops, peering exchanges such as NAPAfrica may appear in route naming, and no 120ms+ jump mid-route.

International routing indicators: sudden triple-digit latency increase, foreign IP blocks, undersea cable transition nodes.

See: [What Is NAPAfrica and Why It Matters for Gamers](/knowledge-hub/gaming-performance/napafrica-gaming-impact)

## How Long Should You Run It?

Minimum: 5 minutes. Better: 10 minutes during active gameplay.

Testing under load (e.g., while someone uploads) can reveal bufferbloat.

See: [How to Test Gaming Latency Properly](/knowledge-hub/gaming-performance/test-gaming-latency-properly)

## When to Escalate Using WinMTR Logs

Escalate only if you tested via Ethernet, the test ran 5+ minutes, packet loss persists across multiple downstream hops, and latency spikes begin before local peering.

Provide: full WinMTR screenshot, time and date, destination tested.

Do not escalate based on single-hop loss, short-duration spikes, or WiFi-based tests.

## Definition

- **WinMTR** — A Windows-based network diagnostic tool that continuously sends test packets to a destination while displaying hop-by-hop latency and packet loss. It combines ping and traceroute functionality to identify where instability begins along a routing path.

## Common WinMTR Mistakes

- Running for under 1 minute
- Testing on WiFi
- Misinterpreting ICMP rate limiting as packet loss
- Testing random foreign servers
- Escalating without isolating LAN congestion
- WinMTR is effective only when interpreted correctly

## South African Routing Expectations

For locally hosted games: stable low double-digit latency (region dependent), minimal packet loss, no sudden mid-route jumps.

For international servers: triple-digit latency, possible variation during cable congestion, higher jitter under load.

WinMTR distinguishes between geographic delay and network instability.

## Frequently Asked Questions

**Is 1% packet loss acceptable?**

No. Sustained packet loss affects real-time games and should be investigated.

**Why does one hop show 100% loss?**

That hop is likely filtering diagnostic traffic. Check if loss continues downstream.

**Can WinMTR lower my ping?**

No. It is a diagnostic tool, not an optimisation tool.

**Should I test during gameplay?**

Yes. Testing during active sessions reveals real congestion patterns.

**Does higher fibre speed improve WinMTR results?**

Not automatically. Routing efficiency and queue management determine latency stability.