Everythings worked perfect and I love this router.  I had 200mbps service with Xfinity. Upgraded last week too 600mbps.  Connecting Directly from my cable modem sb8200  ethernet to my computer directly I get 650mbps+ on pretty much every speed test I try.    Connected through my A7 Archer router.  Speed tests are all at 265mbps to 300mbps. never higher.   Ive disabled and enabled everything on this router.  restored. reset.  turned on turned off.  It deffinately is the router.  I went to comcast and rented their old sad gateway and I get a full 700mbps on every speed test every time.  Directly connecting my computer on either net to the cable modem gives me full speed.  Using Xfinitys old model/router is get full 600+ speed.  Using Archer a7 I its limiting me to 260-300mbps.  I'm about the put it on ebay for sale.  is it a software bug? I read everything on there and other people had the same problem. i tried off nat boost qos...restarted.. restored turns a million things off and on.  Anyone know the real fix?? Ive wasted too many hours on this thing lol

thanks

Mattman