If you are unable to connect to Battle.net or can't stay connected, try the following steps one at a time, then attempt to connect again. Test the connection after each step is complete. Each step has the potential of solving Battle.net connection issues.
Step 1: Check for Updates
If you are not able to get onto Battle.net, download and install the latest patch from the Patch page. Check the Battle.net Status Forum for any information regarding server maintenance.
Step 2: Background Applications
You may need to exit any programs you have running in the background to improve network performance and stability. Visit our page on Closing Background Applications for more information.
Step 3: Temporary Restrictions
Try to connect to all four Battle.net Realms (USEast, USWest, Europe, and Asia). If only one Battle.net Realm is inaccessible to you, it may just be a temporary connection problem or a temporary restriction. Battle.net access may be temporarily restricted for one of the following reasons:
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Spamming text in the chat channel (often associated with bots)
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Rapidly connecting/disconnecting to Battle.net (often associated with bots)
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Repeated attempts to use an invalid CD-Key
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Repeated use of an incorrect password may lock an account login for your protection
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Repeated use of third-party programs (hacks) including, but not limited to, sending bad packets, flooding the server(s), and the use of hack programs
Step 4: Battle.net Server List
A security breach or setting may have modified the server list on your computer to block the connection to a Blizzard Entertainment Battle.net server. See our Resetting the Battle.net Server List page for instructions on restoring the correct server list.
Step 5: Internet connection notes
If you are using any type of firewall or router, or if you are sharing your internet connection between several computers, you may need to configure your firewall, proxy, router and ports to allow access to Battle.net.
If you require further assistance, please contact us and attach your system files to the ticket.
