TP-Link TL-ER604W manual MAC Filtering

Beacon Interval:	Enter a value between 40-1000 milliseconds for Beacon Interval here.
	The beacons are the packets sent by the router to synchronize a
	wireless network. Beacon Interval value determines the time interval of
	the beacons. The default value is 100.
RTS Threshold:	Here you can specify the RTS (Request to Send) Threshold. If the
	packet is larger than the specified RTS Threshold size, the router will
	send RTS frames to a particular receiving station and negotiate the
	sending of a data frame. The default value is 2346.
Fragmentation	This value is the maximum size determining whether packets will be
Threshold:	fragmented. Setting the Fragmentation Threshold too low may result in
	poor network performance since excessive packets. 2346 is the default
	setting and is recommended.
DTIM Interval:	This value determines the interval of the Delivery Traffic Indication
	Message (DTIM). A DTIM field is a countdown field informing clients of
	the next window for listening to broadcast and multicast messages.
	When the Router has buffered broadcast or multicast messages for
	associated clients, it sends the next DTIM with a DTIM Interval value.
	You can specify the value between 1-255 Beacon Intervals. The default
	value is 1, which indicates the DTIM Interval is the same as Beacon
	Interval.

Tips:

The modification of the Wireless Advanced will take effect only after the router is rebooted.

3.2.2 MAC Filtering

On this page, you can control the wireless access by configuring the MAC Filtering.

Choose the menu User Wireless→MAC Filtering to load the following page.

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