D-Link AC1200 - Page 140

DIR-842V2 AC1200 Wi-Fi Gigabit Router
User Manual
Configuring via Web-based Interface
Page 140
The following fields are available on the page:
Parameter Description
Bandwidth
The channel bandwidth for 802.11n standard in the 2.4GHz band
(the 2.4 GHz tab).
• 20 MHz: 802.11n clients operate at 20MHz channels.
• 20/40 MHz: 802.11n clients operate at 20MHz or 40MHz
channels.
• Auto: the router automatically chooses the most suitable
channel bandwidth for 802.11n clients.
The channel bandwidth for 802.11n and 802.11ac standards in 5GHz
band (the 5 GHz tab).
• 20 MHz: 802.11n and 802.11ac clients operate at 20MHz
channels.
• 20/40 MHz: 802.11n and 802.11ac clients operate at 20MHz
or 40MHz channels.
• 20/40/80 MHz: 802.11ac clients operate at 20MHz, 40MHz,
or 80MHz channels.
• Auto: the router automatically chooses the most suitable
channel bandwidth for 802.11n and 802.11ac clients.
Autonegotiation
20/40 (Coexistence)
Available on the 2.4 GHz tab.
Move the switch to the right to let the router
automatically choose
the channel bandwidth (20MHz or 40MHz) depending on
availability of other APs within its operational range (this setting can
substantially lower the data transfer rate of your wireless network).
The switch is displayed when the 20/40 MHz
value is selected from
the Bandwidth drop-down list.
TX Power
The transmit power (in percentage terms) of the router.
Drop multicast
Move the switch to the right to disable multicasting for the router's
WLAN. Move the switch to the left to enable multicasting from the
WAN connection selected on the Functions / Advanced
/
IGMP/MLD
page. If the switch is moved to the right, the device will
not be available by the domain name for Wi-Fi clients.
Adaptivity mode
Move the switch to the right to prevent your wireless network from
interfering with radars and other mobile or stationary radio systems.
Such a setting can slow down the router's WLAN.