Troubleshooting steps for latency problems in StarCraft II

You have been disconnected. (BLZ51901017)

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

Troubleshooting steps for disconnections in StarCraft II

Information on various types of networks available to the public.

Troubleshooting steps for disconnection problems with the Battle.net mobile app

Troubleshooting steps to help you connect to StarCraft II

A guide on running a traceroute on Windows and Mac.

Security software which can be used to resolve virus and malware infections.

How to run a pathping on Windows and Mac.