What to do if you experience high latency or frequent disconnects.

Troubleshooting performance problems in Modern Warfare II.

Information on various types of networks available to the public.

Troubleshooting steps for connection problems

What to do if you internet service provider (ISP) is encountering connection issues.

Troubleshooting for Authenticator Error - Please Connect to a Network: Your device is currently not connected to a network. Please try again later.

Information as to why a mystery Battle.net account is already connected to your Xbox account

We can't connect you to the Blizzard patch service. Please check your internet connection and try again.

This error occurs when your connection to our servers is blocked. This may be caused by a third-party program.

How to unlink your Twitch account from your Battle.net account