NETGEAR Nighthawk D7000 User Manual page 130

Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000
6. Enter the settings as described in the following table.
The descriptions in the table (not the settings onscreen) apply to both the Advanced Wireless Settings
(2.4GHz b/g/n) section and the Advanced Wireless Settings (5GHz 802.11a/n/ac) section, except
where noted.
Field
Enable 20/40 MHz Coexistence
Fragmentation Length
(256-2346)
Description
By default, 20/40 MHz coexistence is enabled to prevent interference
between WiFi networks in your environment at the expense of the
WiFi speed. If no other WiFi networks are present in your
environment, you can clear the Enable 20/40 MHz Coexistence
check box to increase the WiFi speed to the maximum supported
speed.
Note This setting applies to the 2.4 GHz radio only.
The fragmentation length (the default is 2346), the CTS/RTS
threshold (the default is 2347), and the preamble mode (the default
Manage the WiFi Network Settings
130