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SBX-AC1200P: Wireless Multimedia (WMM) Setup

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How do I configure wireless QoS (Quality of Service) in my SBX-AC1200P?
Wi-Fi Multimedia is an advanced feature that allows the SBX-AC1200P to prioritize various types of data traveling over the wireless network.  Certain types of data that are sensitive to delays, such as voice or video, must be prioritized ahead of others, less delay-sensitive types, such as email.

WiFi Multimedia currently implements wireless Quality of Service (QoS) by transmitting data depending on the priority settings.  These priority are mapped into four Access Categories, in increasing order of priority:

  • Best Effort (AC_BE)
  • Background (AC_BK)
  • Video (AC_VI)
  • Voice (AC_VO)
The SBX-AC1200P requires WiFi Multimedia (WMM)-capable clients, usually a separate feature enabled at the client network settings, and the client PC software that makes use of Differentiated Services (Diffserv).  Refer to the operating system instructions for enabling QoS.  This document describes how to enable and configure WMM.

To Enable WiFi Multimedia (QoS)

NOTE: Steps 2 - 12 (static IP address setup) are applicable on Windows 10, 8 & 7.  
  1. Connect a computer with the Ethernet cable or to the SBX-AC1200P default wireless network.  The default wireless name and password are located on the back panel of the SBX-AC1200P.  

    NOTE: If the SBX-AC1200P is operating as a wireless router, client devices can only connect to the SBX-AC1200P default wireless network because the Ethernet port is used for connecting a modem device.  Connect the Wi-Fi client to the SBX-AC1200P default wireless network and click here to skip to step 13.

  2. Click the Window's Start button and type Network and Sharing Center in the Search box.
  3. Click on the Network and Sharing Center icon.  The Network and Sharing Center window will appear.

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  4. On the Network and Sharing Center window, click the Change adapter settings link.  The Network Connections window will appear.

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  5. On the Network Connections window, right-click on Local Area Connection then select Properties.  The Local Area Connection Properties window will appear.

    NOTE: If the computer is connected wirelessly, right click on Wireless Network Connection then select Properties for Wireless Network Connection Properties window.

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  6. On the Local Area Connection Properties window, select the Internet Protocol Version 4 (TCP/IPv4) then click the Properties button.  Make sure the box to the left is checked.  The Internet Protocol Version 4 (TCP/IPv4) Properties window will appear.

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  7. In the Internet Protocol Version 4 (TCP/IPv4) Properties window, capture the current IP and DNS addresses under the General tab for reference.  These settings will need to be restored after making changes in the SBX-AC1200P Web Manager.

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  8. Select Use the Following IP address.
  9. Enter in the IP Address field. 
  10. Enter in the Subnet Mask field.
  11. Click the OK button.  

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  12. Click the Close button on the bottom of the Local Area Connection Properties window.

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  13. Launch a web browser, such as Internet Explorer, Firefox, or Safari.  Enter into the address box, and press the Enter key.  The Login page will appear.

    NOTE: If the SBX-AC1200P is operating as a wireless router, enter in the address box.  

  14. On the Login page, enter admin in the Username field.
  15. Enter password in the Password field.
  16. Click the Login button.  The Home page will appear.

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

  17. Move the mouse-cursor over the Wireless on the main menu and click the Quality of Service link on the sub-menu.  The Wireless - WMM Quailty of Service page appears.

    WARNING: It is not recommended that these settings be modified without direct knowledge or instructions to do so. Modifying these settings inappropriately could seriously degrade network performance.

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  18. On the Wireless - WMM Quality of Service page, click the WMM Support drop-down menu and select On or Off.
  19. Click the No-Acknowledgement drop-down menu and select On or Off.  When enabled, acknowledgement for data are not transmitted.
  20. Click the Power Save Support drop-down menu and select On or Off.  When enabled, the Access Point (AP) queues for packets for STAs are in Power Save mode.  Queued packets are transmitted when the station (STA) notifies AP that it has left the Power-Safe mode.
  21. Click the Apply button.

    NOTE: Transmit Parameters include Contention Window (CWmin and CWmax), Arbitration Inter Frame Spacing Number (AIFSN), and Transmit Opportunity Limit (TXOP Limit).

  22. EDCA AP Parameters - Specifies the transit parameters for traffic transmitted from the AP to STA.

    NOTE: Admission Control specifies if admission control is enforced for the Access Categories. Discard Oldest First specifies the discard policy for the queues.

  23. EDCA STA Parameters - Specifies the transit parameters for traffic transmitted from the STA to AP.
  24. EDCA TXOP Parameters - Specifies the transit parameters for traffic tranmitted from TXOP.
  25. Click the Apply button.

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