ZyXEL VMG4927-B50A User Guide - Page 98
Channel Status
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Chapter 7 Wireless Table 22 Network Setting > Wireless > Advanced (continued) LABEL DESCRIPTION WMM Select Enable to have the VMG automatically give the wireless network a priority level according to the ToS value in the IP header of packets it sends. WMM QoS (WiFi MultiMedia Quality of Service) gives high priority to voice and video, which makes them run more smoothly. WMM Automatic Power Save Delivery Note: At the time of writing, WMM is enabled by default and it is not changeable. Select Enable to extend the battery life of your mobile devices (especially useful for small devices that are running multimedia applications). The VMG goes to sleep mode to save power when it is not transmitting data. The AP buffers the packets sent to the VMG until the VMG "wakes up". The VMG wakes up periodically to check for incoming data. DFS Channel Note: This works only if the wireless device to which the VMG is connected also supports this feature. This option is only available for the 5GHz band. Disabling it will force Channel in Network Setting > Wireless > General to be set to Auto. Enabling this option allows the use of DFS channel, ranging from 52~144, which may interfere with some RADAR devices. If your device is operating near an area known to have RADAR devices, it is recommended to disable DFS Channel to avoid interfering with their signal. MU-MIMO Apply Cancel Note: As of this writing, this option is not available for VMG9827-B50A. Select Enable to allow accelerated and simultaneous WiFi service when there are multiple MUMIMO (Multi User-Multiple input, Multiple Output) ready devices connected to the VMG. Click Apply to save your changes. Click Cancel to restore your previously saved settings. 7.6 Channel Status Use the Channel Status screen to scan the number of devices which are using 2.4G and/or 5G WiFi channels and view the results. Click Network Setting > Wireless > Channel Status. The screen appears as shown. Click 2.4G Scan and/or 5G Scan to scan the 2.4GHz and/or 5GHz wireless band channels. You can view the results in the corresponding Channel Scan Result section. Note: The 2.4G Scan or 5G Scan button only works when the VMG uses 20 MHz for the wireless channel width. You can go to the Network Setting > Wireless > Advanced screen, and then change the channel width setting in the Bandwidth field. VMG4927-B50A / VMG9827-B50A User's Guide 98