If you cannot sign in, something is likely preventing Concepts from connecting to our server. Please try these solutions.

• Restart your device. This often resolves simple connection glitches.
• Check your network connection. Try moving to a location with a stronger Wi-Fi or cellular signal.
• If you are on a school or company network, a firewall or anti-virus program may be blocking the connection.

Important: For IT administrators, Concepts needs to access the address https://carbon.tophatch.com on port 443 using gRPC and websockets protocols. If a proxy server is required, you can configure it within the app in the Gallery via the Settings menu.

If these steps do not resolve the issue, please contact our support team for help.