ContributionsMost RecentMost LikesSolutionsRe: Download speeds 1/10 from previous. Problems with Cox in West Valley (Goodyear AZ)? Nevermind. I just needed to reboot my computer...I'm an idiot. Download speeds 1/10 from previous. Problems with Cox in West Valley (Goodyear AZ)? Since I noticed it last night, my internet download speeds have deteriorated form 900-700Mbps to 70Mbps. Nothing has changed in my system. I had new neighbors move in next door a few days ago if that matters. Upload speed is fine. Modem shows SNR of 37.8-40.9 Downstream and 40.3-41.0 upstream (which I believe is great). Log has occasional Time Sync failure and Dynamic Range Window violation but this was occurring before the speed problem and should have nothing to do with it. I've had no dropouts that I know of. I'm connecting my modem directly to the incoming cable. My equipment is a Netgear CM1000 connected to a Ubiquiti EdgeRouter-12-P and a Cisco switch connected to that. All my tests are done directly wired to modem using the Speedtest App on Mac OS X (latest). Any help? Re: Gigablast compatibility Would putting your new modem in bridge mode help? This would prevent a dual NAT that you could be having as an incompatibility. Cox may refuse to do this. Re: D3.1 Gigablast Activation: Is Pro Install really needed??? Your question wasn't really answered, I don't think Karen gets it (Gigablast for Docsis 3.1 vs Fiber). Try again. If you want Gigablast for Docsis 3.1 and you know you have a good connection (you do) then you do not need professional installation. This thread has all of your answers. http://www.dslreports.com/forum/r31611493-DOCSIS-3-1 Re: Internet connection slow I'm in west valley Phoenix and my internet is completely down. Called cox and they said it would be back up at 7am!!! Eastern time but that's more like than 4 hours downtime. **.