Use The Extender In Access Point Mode - NETGEAR EX3700 Quick Start Manual

Use the Extender in Access Point Mode

You can use the extender as a WiFi access point, which creates a new WiFi
hotspot by using a wired Ethernet connection.
1. Plug the extender into an electrical outlet.
Wait for the Power LED to light green. If the Power LED does not light,
press the Power On/Off button.
2. Use an Ethernet cable to connect the Ethernet port on the extender
to a router Ethernet LAN port or a remote Ethernet LAN jack with LAN
access.
The extender joins the LAN and creates a WiFi hotspot.
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