How to reduce latency in Raids and Battlegrounds.
Troubleshooting steps for connection problems
Information to troubleshoot connection, latency, or UI issues which may prevent your character from entering instances
What to do if you experience high latency or frequent disconnects.
Many World of Warcraft issues are caused by conflicts between the game interface and addons. The steps on this article may quickly and easily solve your problem.
Troubleshooting steps for latency issues in World of Warcraft
What to do if you internet service provider (ISP) is encountering connection issues.
Latency issue with Auction House.
Troubleshooting for low or spiky FPS in World of Warcraft.
Information on error code WOW51900101