I am having the same problem which is usually the modem showing disconnected , confguer modem manually. . With 160115 seem to be less but I had to change the NTU to 1492 the default value 1480. and...

I had tons of problems with Archer d9 as it was disconnecting all the time , however this new firmware has helped me a lot , even I am getting nice readings on my wife speed. But , it is good to have...