Everything you need is provided in the following link. You will still need to work with your ISP to properly provision the device.

https://arris.my.salesforce-sites.com/consumers/articles/General_FAQs/SB8200-Troubleshooting-Internet-Connectivity/?l=en_US&fs=RelatedArticle#:~:text=If%20there%20is%20no%20Internet,front%20panel%20LEDs%20will%20flash.