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Windows

How to Test Packet Loss on Your Internet Connection

Packet loss makes games rubber-band and calls break up. Test it with a long ping in Command Prompt, Windows’ pathping, or an online packet loss test. Any loss above 1% on a wired connection is worth fixing or reporting to your provider.

Updated
Time
10 minutes
Difficulty
Medium
Applies to
Windows, Mac

By Published Oct 6, 2026

Quick answer

  1. 1 Open Terminal and run: ping -n 100 1.1.1.1 (Mac/Linux: ping -c 100 1.1.1.1).
  2. 2 Read the Lost percentage at the end.
  3. 3 Run pathping 1.1.1.1 to see where loss starts.
  4. 4 Test again on Ethernet to rule out Wi-Fi.
  5. 5 Loss at your router = home problem; loss beyond it = provider problem.
On this page
  1. Before you start
  2. Run a ping test
  3. Find where the loss happens
  4. Common causes and fixes
  5. Troubleshooting
  6. Frequently asked questions

Before you start

  • A computer

Method 1 Run a ping test

  1. Step 1: Open Terminal

    Right-click Start > Terminal (Mac: open Terminal).

  2. Step 2: Ping 100 times

    Run the command below. It sends 100 packets to Cloudflare’s DNS server.

  3. Step 3: Read the result

    At the end, look for Lost = X (Y% loss). 0% is ideal; above 1–2% causes noticeable problems in games and calls.

Ping 100 times
ping -n 100 1.1.1.1      (Windows)
ping -c 100 1.1.1.1      (Mac/Linux)

Method 2 Find where the loss happens

  1. Step 1: Ping your router

    Run ping -n 100 192.168.1.1 (your router’s address). Loss here means a Wi-Fi or cable problem inside your home.

  2. Step 2: Run pathping

    On Windows, run pathping 1.1.1.1. After about 5 minutes it shows loss for each hop. Loss that starts at your provider’s first hop and continues to the end points to them.

Trace loss along the route (Windows)
pathping 1.1.1.1

Common causes and fixes

  • Wi-Fi interference or weak signal: use Ethernet or 5 GHz, change channel.
  • Bad cable or port: swap them.
  • Overloaded connection: stop big uploads/downloads; enable QoS.
  • Line faults: report to your provider with pathping results.

Troubleshooting

Ping shows “Request timed out” for everything

The target may block ping or your connection is down. Try 8.8.8.8 and check your internet.

Loss only in the evening

Congestion at your provider during peak hours. Log results and contact them.

Frequently asked questions

What is acceptable packet loss?

0% on a wired connection. Under 1% is usually unnoticeable; 2%+ causes problems.

Can a VPN fix packet loss?

Rarely. Only if your provider’s route is the problem; usually it adds a hop.

Summary

Run ping -n 100 1.1.1.1 to measure loss, ping your router to check your home network, and use pathping to see where loss starts. Fix Wi-Fi and cables at home, and report line loss to your provider.

Sources

Written by

James Chambo

Founder

James is the Founder and Senior Editor of OnlineHow with more than 20 years of experience in internet publishing.