I'm experiencing very high latency spikes in COD warzone. It lasts for about 2 minutes going up to 850 ping then stays there and goes back down to my normal ping. And this doesn't happen every game. Other than that I am not having any issues with the router. My Bufferbloat test results show A+ to A. I have Steady ping enabled while using Geo filter. I also did the ping optimizer feature in simple mode which said it brought down my ping from 72 > 30. I have a guest wifi enabled for 2.4ghz signal. I'm on firmware 4.0.219. And Smart boost is on, with Gaming being my only priority.