Hi friend.
If your question is that you can't connect to the internet after you reset the device, there are several possible reasons.
The possible cause is that the configuration data is lost or the connection between the ONT and the OLT is disconnected. Check whether the configuration data is normal.
If no exception occurs, check the cause of the line.
In addition, I don't know the specific conditions of your device, so I can't directly locate the root cause. I recommend this post to you, which describes many reasons why you can't connect to the Internet. You can check them one by one.
Can't Connect to the Internet? Try These Tips
If the problem persists, please contact your ISP.
Have a good day!