Could Not Connect to the Network Data Source
Common ProblemsWorld of Warcraft was not able to connect to the network data source.
This error appears when your computer was unable to connect to our servers. Follow the steps below to resolve the issue.
Reset your network devices to make sure your router hasn't become flooded with data.
Try closing background applications to resolve any software conflicts.
Disable or temporarily uninstall any security programs, which may mistakenly identify the login module as a security threat.