Consumers - SBR-AC1200P: Installation on Cable Internet Service

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SBR-AC1200P: Installation on Cable Internet Service

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How do I install my SBR-AC1200P into my Cable Internet Service?
The SBR-AC1200P is a wireless router that provides secure high-speed Internet connectivity to the wired or wireless network devices on the home or small business network.  It is compatible with Cable, DSL, and FIOS service.  

When installing the SBR-AC1200P to a Wi-Fi cable modem, the Wi-Fi cable modem will then need to be setup as a pass through device by disabling routing, wireless, and firewall features to allow the SBR-AC1200P to be the primary Wi-Fi  router and firewall.  This will allow the SBR-AC1200P to handle the connection to the Internet.  Please contact the manufacturer to determine how to configure the Wi-Fi cable modem as a pass through device. 

This document contains the following sections:

CAUTION: To better secure your network, ARRIS recommends to change the default admin user name & password and the default wireless password immediately after connecting to the Internet.


  • Active cable Internet service 
  • Cable Modem or Wi-Fi Cable Modem
  • Consult with the service provider to configure the modem device as a pass through modem.

    NOTE: If the Wi-Fi cable modem is not setup as a pass through modem, the SBR-AC1200P's firewall, port forwarding, and DMZ features may not function properly.


Verify that the following items were included with the ARRIS SBR-AC1200P wireless router.  The SBR-AC1200P, power supply and Ethernet cable are necessary to perform the installation. 

NOTE: The warranty card and quick start guide are available for download at
  • Wi-Fi Router
  • Power Cable 
  • Wireless Installation Guide
  • Ethernet Cable
  • End User License Agreement 
  1. Open a web browser on the computer (such as Internet Explorer, Google Chrome, Firefox. or Safari).
  2. Enter the address in the address bar and press the Enter key. 

    NOTE:  If the Internet is not accessible, please contact the service provider to setup Internet service.

Right click on the image to save it to your computer.

  1. Unplug Cable Modem or Wi-Fi Cable Modem from electrical outlet. 

    NOTE: If there is a back-up battery in the modem, remove it temporarily.

  2. Disconnect all Ethernet cables from the Cable Modem or Wi-Fi Cable Modem.
  3. Connect the blue Ethernet cable (included) to the Ethernet port on the rear of the Cable Modem or Wi-Fi Cable Modem.
  4. Connect the other end of the blue Ethernet cable to the blue WAN port on the rear of the SBR-AC1200P.
  5. Power on Cable Modem or Wireless Cable Modem by plugging the power cord to the electrical wall outlet.

    NOTE: Re-add battery back-up if it was removed prior.  

  6. Check for Online LED on the Cable Modem or Wireless Cable Modem for Internet connectivity after 30 seconds. 
  7. Connect the power cord to the rear of the SBR-AC1200P and plug it to an available electrical wall outlet.  Allow 30 seconds for the Front Panel Primary LED to become solid green.  

    NOTE 1: If the Front Panel Primary LED is flashing green make sure both ends of the blue Ethernet cable is securely connected between SBR-AC1200P and Cable Modem device or try using another Ethernet cable. 

    NOTE 2: If the Front Panel Primary LED is flashing green, a factory reset will be needed on the Cable modem device.  Check for Online LED on the Cable modem for Internet connectivity, then power cycle the SBR-AC1200P. 

    Front Panel Primary LED 
    Connection status
    Solid greenWi-Fi router is connected to the
    Flashing greenNo connection to the Internet or the
    Flashing redStart-up mode, or error
  8. Connect a Ethernet cable from one of the four white Ethernet ports on the rear of the SBR-AC1200P to the Ethernet port of a laptop or desktop.  For wireless devices, establish to open wireless network list and connect to SURFboard-XXXX (see SSID number listed on the router label).  

    User-added image
  9. To test Internet connection, launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter into the address box and press the Enter key.  The ARRIS website should open.



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