Troubleshooting steps for Diablo II (2000) error "Your CD Key is currently being used by: Claimed on Battle.net."
Error WOW51900323 when trying to log in to World of Warcraft or when zoning into a new area
Standalone patches are downloaded outside of the game launcher or the Battle.net desktop app.
Troubleshooting steps for Error BLZ51900007.
Information and troubleshooting on error BLZBNTBNA000009C8
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