Hello! I'm sorry to hear about the issues you're facing with your router. It seems like you're having trouble accessing the superadmin account after your router restarted and reset itself. It's important to regain access to your router's superadmin account to ensure proper configuration and security settings.
Here are a few suggestions you can try:
1. Default Credentials: Sometimes routers have default credentials for the superadmin account. You mentioned "Admin" and "Converge@yotc123" not working for you. If these are not working, it's possible that the default credentials have been changed. You may want to try searching online for the default superadmin credentials for your specific router model "YOTC-ONU".
2. Reset the Router: If you're unable to recover the superadmin credentials, you can try resetting the router to its factory settings. This will erase all custom settings, including the password. To reset the router, look for a small reset button on the back or bottom of the device. Press and hold it for about 10-15 seconds until the router restarts. After the reset, you can try accessing the superadmin account with the default credentials.
3. Contact Customer Support: If the above steps do not work, I recommend contacting your Internet Service Provider's customer support for assistance. They should be able to help you reset the superadmin password or provide you with the necessary steps to regain access to your router.
Remember to create a strong and unique password for your superadmin account once you regain access to ensure the security of your network. Let me know if you need further assistance or if you have any other questions!