We will occasionally request a pathping to diagnose connection or latency issues. Follow the steps below to perform this test. If you need to track the path your connection takes to its destination, try running a traceroute.

Note: You can use Battle.net Looking-Glass in addition to a pathping test to help diagnose network issues. This tool is not intended to replace a pathping for troubleshooting purposes.

Pathping

This tool checks for packet loss between your computer and our servers. This may reveal connection problems that don't show up in other latency tests.

  1. Click Start.
  2. In the search field, type cmd.
  3. Right-click on CMD.exe and select Run as Administrator.
  4. Enter the command pathping xxx.xxx.xxx.xxx > c:\pathping.txt
    Note: Replace the Xs with the appropriate IP address from the list below. Run this command once per IP address for your region.
  5. Allow several minutes for the pathping to complete. This creates a file on your C: drive called pathping.txt.
  6. Close the command window.

Pathping

This tool checks for packet loss between your computer and our servers. This may reveal connection problems that don't show up in other latency tests.

  1. Go to the /Applications/Utilities folder and start the Terminal application.
  2. Enter the command traceroute -S -q 30 xxx.xxx.xxx.xxx > ~/Desktop/pathping.txt
    Note: Replace the Xs with the appropriate IP address from the list below. Run this command once per IP address for your region.
  3. Press Return to create a file on your Desktop called pathping.txt.
  4. Quit the Terminal application.

Select a game above to display a list of IPs to test and a link to that game’s technical support forums. 

Diablo III

Technical Support Forums

Region IP Address
North America 12.129.222.10
Europe 185.60.112.157
185.60.112.158
Korea 182.162.135.1
Taiwan 210.242.235.6
Australia 103.4.115.248

Hearthstone

Technical Support Forums

Region IP Address
The Americas 12.129.222.10
Europe 185.60.112.157
185.60.112.158
Korea and Taiwan 182.162.132.1

Heroes of the Storm

Technical Support Forums

Region IP Address
North America (Americas) 12.129.222.10 (US West)
199.108.62.157 (US Central)
Australia (Americas) 103.4.114.233
Singapore (Americas) 202.9.67.59
Brazil (Americas) 54.207.104.145
Europe 185.60.112.157
185.60.112.158
Korea (Asia) 182.162.116.1
Taiwan (Asia) 203.69.111.4

Overwatch

Technical Support Forums

Region IP Address
The Americas 37.244.0.3
Europe 185.60.112.157

StarCraft II

Technical Support Forums

Region IP Address
The Americas 12.129.202.154 (US West)
199.108.62.157 (US Central)
Europe 185.60.112.157
185.60.112.158
185.60.114.159
Korea and Taiwan 222.231.22.1
Southeast Asia 202.9.67.254

Note: StarCraft II players in the Americas and Europe should test both listed IP Addresses.

World of Warcraft

Technical Support Forums

Region IP Address
The Americas 12.129.222.10 (US West)
199.108.62.157 (US Central)
Europe 185.60.112.157
185.60.112.158
185.60.114.159
Korea 211.115.104.1
Taiwan 210.71.148.11
Oceania 103.4.115.248

Diablo II, StarCraft, and Warcraft III

Technical Support Forums

Region IP Address
North America uswest.battle.net
useast.battle.net
Europe europe.battle.net
Asia asia.battle.net

Before you contact us or post on our forums about connection or latency issues, please have the following information available. This information will help us diagnose issues outside our network.

  • Description of the problem, including affected games or services.
  • Date and time the issue occured.
  • Your IP Address, ISP, and connection type.
  • A traceroute and pathping performed when the issue occurs.
  • An MTR test from Looking Glass performed when the issue occurs.
Analyzing A Pathping

If there is consistent packet loss of 1% or more at your router (hop 0) or modem (hop 1), update your firmware or replace your hardware. Packet loss anywhere else along the route should be reported to your ISP. If you need help analyzing your pathping, you can post the results on our technical support forums.

You can disregard data that shows as 100% packet loss once it reaches our servers. To identify our servers, look for the following suffixes: attens.net, att.net, alter.net, telia.net.

If you get a result with only one IP listed, the test failed. You need to disable your router's firewall and run the test again. Contact your router's manufacturer for more information. Make sure you re-enable your router's firewall after the test is complete.

Example pathping:


Note: This example is for teaching purposes only and does not indicate past or current ISP issues.