Cox service is honestly just terrible right now. I've been having the same issues within the same time span. Hate to tell you this but cox has not offered a fix right now. They'll just tell you that the node is being saturated and there's too much traffic in your area. It doesn't matter what speed you have, it wont change a thing. I have 500mbs and get packet bursts consistently in CoD. Basically meaning cox can't send and receive packets in an efficient manner. I've done port forwarding and nothing helps. I tried using my phone as a hotspot devices and guess what, I run smoothly on that. My cellular hot spot at sub 50mbs is running CoD smoother than 500mbs wired. My advice, save yourself some money and lower your speed or change providers. If AT&T had higher speeds in my area I would change in a heart beat.