When someone downloading large game files, all devices in my network slows down.  I need a router that are capable to limit the bandwidth of every devices connected to my network. As TP-Link advertise in it's website that Archer A6 Ver 3.0 has QOS by device. So i bought the device hoping to solve my problem. But the problem is, that the Archer A6 has QOS base only on prioritization. I think most of us do not need that setup. Is there any way to upgrade this router's firmware with bandwidth limiter per device or per ip address included? thanks!