Troubleshooting Classic Connection Issues

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Review the troubleshooting steps below to address connection issues that you may experience with Warcraft II, Diablo, Diablo II, and StarCraft.

  1. Run the game in Administrator Mode to address many installation, patching, networking, and start-up errors.
  2. If you have not patched the game, download and install the latest patch.
  3. If you have a router and are having various internet connection issues, check your router manufacturer's website for any updates.
  4. If you are using any type of firewall, router, or if you share your internet connection between several computers, you may need to set your system up to allow access to
Advanced Troubleshooting
  1. Run a Trace Route report to help identify if and where a problem is happening.
  2. You may need to exit any programs you have running in the background to improve performance and stability. See our Closing Background Applications guide for assistance.
  3. Try to connect to all four Realms (Europe, USEast, USWest, and Asia). If only one Realm is inaccessible to you, then it may be a temporary connection problem or restriction. access may be restricted for one of the following reasons:
    • Spamming text in the chat channel (often associated with bots)
    • Rapidly connecting/disconnecting to (often associated with bots)
    • Repeated attempts to use an invalid CD-Key or an incorrect password
    • Repeated use of third-party programs (hacks) - these include but are not limited to sending bad packets, flooding the server(s), and the use of hack programs.

Tried everything here?

If you have tried all of the steps for your operating system and still require assistance, contact us.

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