Overwatch Error: Unable to Patch (Xbox)

If your region is currently patching or undergoing maintenance there might be a known issue affecting all players. Check @BlizzardCS on Twitter, or the technical support forums linked at the bottom of this article, for information on any ongoing issues. If there are no known issues, the steps below may resolve patching issues:

1. If you're using a wireless connection, optimize your internet connection to rule out a connection issue.
2. Reset your network devices to make sure your router hasn't become flooded with data.
3. Check your network configuration to find any issues with your firewall, router, or port settings.
4. Uninstall and reinstall your game.