There's a problem with the connection to the Battle.net servers.
Information about problems getting a Primal Ancient in Diablo III
Troubleshooting steps to resolve performance problems in Diablo III.
Troubleshooting steps for Diablo III console connection problems.
A guide for diagnosing and repairing problems with physical hard drives.
Information about the error "There was a problem retrieving items from the store. (Code 396009)."
Follow these steps to troubleshoot problems with your low-speed or wireless internet connection.
Problems with patching may be resolved by disabling the read-only setting on system folders.
Many common hard drive or OS problems on a Mac can be resolved by running Repair Disk.
Out-of-date drivers and operating systems can cause a variety of issues, and are one of the first things to check when a game is having problems.