Set The Extender As An Ap - TP-Link TL-WA855RE User Manual

The extender can be used as a wireless adapter to connect any Ethernet-
enabled device, such as a Blu-ray player, game console, DVR, or smart TV, to
your wireless network.
After the extender connected to the Internet, you can connect an Ethernet-only
device to the extender using an Ethernet cable.
The extender can be used as an access point, thus to transform your existing
wired network to a wireless network.
Connect the extender to your router
Power on the extender, and connect it to your router's Ethernet port with
an Ethernet cable.
Set the extender to AP mode
Connect your computer to your extender's wireless network.
Launch a web browser and log into http://tplinkrepeater.net, click
Mode in the top right corner, select Access Point and click Save.
The extender will switch to AP mode and reboot automatically.
After rebooting, you may need to reconnect to the extender's network
and log in again.
Change the SSID and Password (Optional)
Go to Settings > Wireless > Wireless Settings page, configure the
extender as the picture shows below, and click Save.
Connect the Extender to the Internet