TL-WR841N connect as repeater - Network and Wireless Configuration - OpenWrt Forum
User manual TP-Link TL-WR841N (English - 184 pages)
Installing DD-WRT on the TP-LINK TL-WR841N
Amazon.com: TP-Link N300 Wireless Extender, Wi-Fi Router (TL-WR841N) - 2 x 5dBi High Power Antennas, Supports Access Point, WISP, Up to 300Mbps : Electronics
TP Link TL WR841N Repeater Mode configuration - YouTube
Learn on the fly : Build a cheap cordless wifi repeater and range extender with a tplink router WR841N