Anypoint Flex-Gateway Node Disconnected - Error: “registration configuration is missing"

When the Flex Gateway service fails to connect to the Anypoint Platform, perform the following steps:

1. Run the command "sudo /usr/local/bin/flexctl registration inspect" to check for errors in the registration configuration.

2. Restart the Flex Gateway service using "systemctl restart flex-gateway" while monitoring live logs via "journalctl -u flex-gateway -f" to identify any errors.

3. Copy the registration.yaml file from "/usr/local/share/mulesoft/flex-gateway/conf.d" to "/etc/mulesoft/flex-gateway/conf.d" to ensure proper access, only when sudo user cannot access the registration file.

4. Restart the Flex Gateway service again to confirm that the issue is resolved and the node connects to the platform.
sudo systemctl restart flex-gateway
sudo systemctl status flex-gateway