ContributionsMost RecentMost LikesSolutionsRe: CGM4331 Wi-fi speed Wifi speeds are not determined by the power of the router (AC1200 or AC5400), but by the physics of the frequencies involved. The higher the frequency, the better the speed. 5Ghz is good for somewhere between 550mbps and 650mbps, under optimal conditions. 2.4Ghz, while having greater range is limited usually to somewhere in the area of 65-70mbps, although I have seen it go higher. Lots of environmental factors go into the speeds that you are going to get. Metal in the area, other devices that emit EMI (Electro-Mechanical Interference), radio gear, other routers using the same frequency and channel yours is using. All of that limits the capabilities of your router to deliver good clean signal. Environmental factors Cox can do little to nothing about, clearing that up is on the user. Re: Unacceptable low upload speed You can always call them and down-tier your service to Essentials. Save a few bucks, if 100mbps is all you need. Something to think about. Re: Unacceptable low upload speed The best way to get higher upload speeds is to get a fiber connection. I know, not available in many areas, but the data plans are pretty clear about expectations. Gigablast gets a gig down, and 30mbps up, thats the plan. Its the highest plan available without fiber. Most people understand that when they sign up, some dont.