The BN-564 error on PlayStation® can occur when the Overwatch servers are down for maintenance. Please check BlizzardCS on Twitter for updates on server status.
If maintenance is not occurring, please try unlinking your Blizzard account from your PlayStation. Through Account Settings on Battle.net:
- Click Security & Privacy.
- Select Connected Accounts.
- Click Disconnect next to your PlayStation Network account.
- Close and restart Overwatch on your PlayStation.
To relink your Battle.net and PlayStation Network accounts, follow these instructions.