DD-WRT Forum :: View topic - Asus Rt N12 D1 - SOLUTION
Buy TP-Link N300 Wireless Extender, Wi-Fi Router (TL-WR841N) - 2 x 5dBi High Power Antennas, Supports Access Point, WISP, Up to 300Mbps Online in Taiwan. B001FWYGJS
Best DD-WRT routers under $100 - Dot Esports
Repurpose an Old Wifi Router for the Internet-of-things : 5 Steps (with Pictures) - Instructables