My 840 run with latest firmware and hardware and yes its already support Tehter App according to compatibility list from the apps. But i have no idea why its shown as Unknown Device. Anyone have same problem ?
Yours is a V6 according to your router's management interface above --- I assume that if V2 is supported, any version above that should also be supported -- I suggest you contact TP-Link for confirmation:
Yours is a V6 according to your router's management interface above --- I assume that if V2 is supported, any version above that should also be supported -- I suggest you contact TP-Link for confirmation: