# Troubleshooting During Startup

Error | Solution
--- | ---
Application starts, but the desired controller is not seen. | Controller network connection is not correct. Make sure the controller is connected correctly to the factory network. Applicable if a network connection is used.
Application starts, but the desired controller is not seen. | Controller configuration to the ToolsTalk 2 is not correct. Make sure the server connections in the controller configuration point to the correct ToolsTalk 2 server.
Error message "Network connection lost or server unavailable" displayed when the ToolsTalk 2 is started. | The client application is not connected properly to the server application. Check that the server application has started. The application should start automatically. If this does not happen then a solution can be to remove the application (uninstallation) and reinstall the application.

Relevant Information

- System Information