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Information on why you might receive this error when sending a message to a Battle.net friend.

What to do if you cannot log into an existing account or link your existing mobile account to Battle.net.

What to do if you can't see the icon for the Kaja'mite Contact Worldsoul Memory event in Undermine.

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Troubleshooting steps for communication and transmission errors.

Troubleshooting for Diablo Immortal connection issues on mobile devices.

Troubleshooting for Warcraft Rumble connection issues on mobile devices.

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