Wifi Accesspoint that connects to another Wifi Accesspoint (Client-Bridge) – TP-Link can do that – WLAN AdHoc Client Bridge with tp-link tl-wr841nd v11 – use wifi router as wifi usb adapter
user_guide:md_tplink_wr841 - RADIUSdesk
How To Upgrade TP-Link Router Firmware | Tp-Link TL-WR841N Firmware - YouTube
Build for TP-Link TL-WR841N(D) [all versions] - Community Builds, Projects & Packages - OpenWrt Forum
How to Flash a Wi-Fi Router (with the example of TP-LINK TL- WR841N)
TL-WR841N doesnt accept any new firmware - Error code: 71211 - Home Network Community