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
How to Revert ddwrt to stock firmware | dd-wrt router - YouTube
TL-WR841N-v11/Back To Original Firmware.md at master · chankruze/TL-WR841N-v11 · GitHub