Yeah I have :/ It seemed to fix it but now I'm getting the problem all over.
EDIT: My ISP are trying to figure out whats wrong. Might not be my hardware after all.
Still nothing. Im using the 8.1 driver and for me it works well but im having WAN disconnects on my new RT-AC68U dont think its related but you never know.
This is really interesting! I have the same issue. Had the Asus RT/N56U and it worked fine but I wanted the AC standard so I bought RT/AC68U that was updated to the latest firmware and I had drops all the time. Exactly the same issue you are mentioning... WLAN and LAN works fine but internet...