TRENDnet TEW-828DRU User's Guide - Page 29

TRENDnet User's Guide Advanced Settings Advanced > Wireless (2.4GHz or 5GHz (5GHz1 or 5GHz2)) > Advanced These settings are advanced options that can be configured to change advanced wireless broadcast specifications. It is recommended that these settings remain set to their default values unless you are knowledgeable about the effects of changing these values. Changing these settings incorrectly can degrade performance.  Beacon Interval: A beacon is a management frame used in wireless networks that transmitted periodically to announce the presence and provide information about the router's wireless network. The interval is the amount time between each beacon transmission. Default Value: 100 milliseconds (range: 25-1000)  DTIM: A DTIM is a countdown informing clients of the next window for listening to broadcast and multicast messages. When the wireless router has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval value. Wireless clients detect the beacons and awaken to receive the broadcast and multicast messages. The default value is 1. Valid settings are between 1 and 255.  Fragment Threshold: Wireless frames can be divided into smaller units (fragments) to improve performance in the presence of RF interference and at the limits of RF coverage. Fragmentation will occur when frame size in bytes is greater than the Fragmentation Threshold. This setting should remain at its default value of 2346 bytes. Setting the Fragmentation value too low may result in poor performance.  RTS Threshold: The Request To Send (RTS) function is part of the networking protocol. A wireless device that needs to send data will send a RTS before sending the data in question. The destination wireless device will send a response called Clear to Send (CTS). The RTS Threshold defines the smallest data packet size allowed to initiate the RTS/CTS function. Default Value: 2347 (range: 1-2347)  Short Preamble: Using a short (400ns) guard interval can increase throughput. However, it can also increase error rate in some installations, due to increased sensitivity to radio-frequency reflections. Select the option that works best for your installation. © Copyright 2015 TRENDnet. All Rights Reserved. TEW-828DRU  20/40 MHz Coexistence (2.4GHz Only) - This setting is enabled by default and allows 2.4GHz to fallback from 40MHz to 20MHz Channel Width operation depending on neighboring 2.4GHz wireless networks detected which may lower performance but improve stability. Turning this feature off will allow the 2.4GHz to operate in 40MHz regardless of neighboring networks which may improve performance but decrease connection stability in busy wireless environments.  Xpress™ Technology: A frame bursting technology used to improve wireless performance. The feature will only work with other Xpress™ supported devices. It is recommended to leave this feature On.  Implicit Beamforming: Technology capable of focusing RF energy directly toward a receiving client which may significantly improve connectivity, coverage and performance at slightly further ranges by leveraging information from the client device on initial connection and determining how to best focus RF beams toward the client device. This type of beamforming does not require the client device to support beamforming in order to function. Explicit beamforming is also supported and requires client devices to support beamforming in order to function. Explicit Beamforming is enabled by default and cannot be enabled or disabled in the router management page. 26