Manage the WiFi Network Settings
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
A login window opens.
3. Enter the user name and password for the modem router.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
4. Click the OK button.
The BASIC Home page displays.
5. Select ADVANCED > Advanced Setup > Wireless Settings.
The previous figure does not show the bottom of the Wireless Settings page.
6. Enter the settings as described in the following table.
Except for the description of 20/40 MHz coexistence, 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.
Enable 20/40 MHz
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
Note: 20/40 MHz coexistence applies to the 2.4 GHz band only.