ARRIS SURFboard (16x4) DOCSIS 3.0 Cable Modem. Approved for XFINITY Comcast, Cox, Charter and Most Other Cable Internet Providers for Plans up to 400 Mbps. - Walmart.com
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Arris Optimum Box Issues: Devices can't connect for some time daily and when reset stuck blinking on 2nd light for some time : r/OPTIMUM
Arris modem troubleshooting - blinking, Wi-Fi, internet - StreamDiag
how to troubleshoot your modem - YouTube
Arris SBG10
General FAQs: SB6141: LED Light Status
Arris Modem Lights - Meaning & What to Do When Blinking?