If any of Optimum's internet, television, and home phone services suddenly stop working, it could be that part or all of Optimum is down. However, it could also be a random problem on your end. There are usually signs that can help you figure out what's going on.
Are you at your best?
This article contains:
If you think Optimum isn't available for everyone, here are some places you can find out:
Check your service status at Optimum. After logging in, go to Support and click on Service Status/Check your service status here.