Netgear R6900 - Nighthawk AC1900 Smart WiFi Router User Manual (en)

Select the Enable AP Mode check box.
The page adjusts.
Scroll down and select the radio button for the IP address setting that you want to use:
Get dynamically from existing router. The other router on the network assigns an IP address to the router
while the router functions in access point mode.
Enable fixed IP settings on this device (not recommended). Use this setting if you want to manually
assign a specific IP address to the router while it functions in access point mode. Using this option effectively
requires advanced network experience.
To avoid interference with other routers or gateways on your network, NETGEAR recommends
that you use different WiFi settings on each router. You can also turn off the WiFi radio on
the other router or gateway and use the router only for WiFi client access.
Click the Apply button.
The IP address of the router changes, and you are disconnected.
To reconnect, close and restart your browser and enter
Use the Router in WiFi Bridge Mode
You can use your router in WiFi bridge mode to connect multiple devices with WiFi at the faster 802.11ac speed.
To do this, you need two WiFi routers: one set up as a router and the other set up as a bridge.
Manage the WiFi Network Settings
Nighthawk AC1900 Smart WiFi Router Model R6900