How to Toggle Peer to Peer Protocol

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Toggling the Peer-to-Peer Transfer feature may have a significant impact on your ability to install or patch Blizzard® games. While traditional downloads use a single source, peer-to-peer transfers allow users to gather data from other users, which often improves download speed. This option can be found in the Preferences > Downloader Preferences for the Blizzard Downloader and Blizzard games.

Windows

Blizzard Downloader
  1. Launch the Blizzard Downloader
  2. Click  File, then select View.
  3. Click Preferences.
  4. Toggle the Peer-to-Peer option to enable or disable Peer-to-Peer.
World of Warcraft®, StarCraft® II, or Diablo® III Launcher
  1. Launch the appropiate game launcher.
  2. Click Options.
  3. Click Downloader Preferences.
  4. Toggle the Peer-to-Peer option to enable or disable Peer-to-Peer.

It can take several minutes for the patching process to transition between download methods.  You can check your download method by selecting Info > Connection Information.

Mac

Blizzard Downloader
  1. Launch the Blizzard Downloader.
  2. Click Blizzard Downloader on the system menu bar. 
  3. Click on Preferences.
  4. Toggle the Peer-to-Peer option to enable or disable Peer-to-Peer.
World of Warcraft, StarCraft II, or Diablo III Launcher
  1. Launch the appropiate game launcher.
  2. Click Options on the system menu bar. 
  3. Click Downloader Preferences.
  4. Toggle the Peer-to-Peer option to enable or disable Peer-to-Peer.

It can take several minutes for the patching process to transition between download methods.  You can check your download method by selecting Info > Connection Information.

Tried everything here?

If you have tried all of the steps for your operating system and still require assistance, visit our Technical Support Forum (World of Warcraft, StarCraft II, Diablo III) or contact us.

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