Hey Andone thanks for reply. i tried updating the firmware as per your link and i got error "Unmatched firmware version. Upgrade failed." :((

TPLINK 470T+ V4 Firmware Version:1.1.0 Build 20150526 Rel.71817s Hardware Version:TL-R470T+ v4.0 I am trying to forward port 1723 to an internal server. which is not working. many other ports like...