@ChillMan sorry for My earlier diatribe in short to your question go to https://www.smartdomotik.com/2014/09/13/how-to-use-dd-wrt-router-as-wireless-adapter-client-mode/ this should set you on the...

@ChillMan I have been doing this for years now. So far best has been a DD-WRT flashed linksys router WRT350N I have done this two ways fIrst from a hotspot to ethernet LAN Linksys and then lynksys...