@terziyski Yes we have tried a variety of MTU Sizings with no improvement. The odd thing is that we can use an Archer C60 with no problem(these are now End of life)

I am a Network Engineer for an ISP in New Zealand, Trying to use the Archer A6 as a PPPoE client across our nation's fibre network. When using PPPoE as WAN type we have a speed issue where under...