R9000 packet loss

I bought the r9000 router and cm1200 modem almost 90 days ago on the dot, both worked fantastic until about a week and a half ago i begin getting major packet loss. Speedtests all show fine packetloss tests show dropping from 5-40% games are unplayable my wife still is able to stream tv but thats got a buffering aystem and it even hits that occasionally now and it never used to, i plug directly into the modem and everything's fine so i believe its the router i have factory reset it went back a firmware re installed latest firmware and nothing helps is it just defective and does netgear warranty cover it?