ContributionsMost RecentMost LikesSolutionsRe: Forum discussion sorting Last day or so, I am not noticing the problem anymore. Not sure if the issue is just intermittent or Cox fixed something. Anyone know? ::edit:: Never mind, I just noticed it happened again. Re: Modem hardware requirements for upload speed I know you can use the broadband labels to see what the upload is in your area, but that doesn't tell you what is technically required. For example, if a area offers higher upload because it has a OFDMA channel, then you would need a D3.1 modem to take advantage of it. If the area is mid split, you might need a modem with a switchable upstream filter the Arris S33. However Comcast only offers the highest speed to modem's they have specially been tested for that speed on their network. IE, the S33 isn't supported for 200Mbps on Comcast, but the S34 is, even though hardware wise they are similar/identical. Is Cox like this too? Hopefully Colleen can find someone who can shed some light on this question. Re: Modem hardware requirements for upload speed What? How can the info for what is needed to get the best speed on your network be proprietary? What do you tell people or how do you troubleshoot someone who is reporting low upload speed when you can't say what the requirements are for those speeds? You do it for download speeds. Why is upload speed any different? Re: Modem hardware requirements for upload speed Thanks! If I emailed you, would you be able to escalate the question to a engineer or someone who might know? Or would it be pot luck based on who is answering the email queue? This kind of question is exactly why I miss DSLReports since many of Cox engineers used to post there. Re: Modem hardware requirements for upload speed BTW, the reason I didn't email Cox directly to ask is because I want the answers to be public so people can find the answer by googling and I can reference this post when the question comes up. Re: Modem hardware requirements for upload speed "I don't know" is always an acceptable answer. I will make a new post to discuss the issue. Thanks. Modem hardware requirements for upload speed Creating a new post of a discussion started here. Does anyone have any insight into what the hardware or network requirements are for the different upload speeds? For example, as per here, the upload speed for the 500Mbps download tier is: ""10 Mbps, 50 Mbps, or 500 Mbps, based on the network architecture serving your physical address". What does the "network architecture" refer to? I know to get symmetric speeds you need fiber, so that would explain the 500Mbps upload, but is the difference between 10 and 50Mbps? Are they talking about having a OFDMA channel available in your area? Are they talking about mid-split? Something else? Also, what changes what upload speed you get on fiber on the 2Gbps tier? It says it can be both 1Gbps or 2Gbps upload. Is that to do with just the available bandwidth or the congestion in the area or is there a different fiber tech some areas have? Like GPON vs XGS PON? I assume it requires a ONT that has a multi-gigabit ethernet port. Re: Modem hardware requirements for upload speed Well the Cox compatible modem page shows upload speeds for the Panoramic gateways as "up to" so the question is what determines if you get the full provisioned speed or not? Cox's speed and data plans page says: "10 Mbps, 50 Mbps, or 500 Mbps, based on the network architecture serving your physical address" for the 500Mbps tier. What is "network architecture" that they are referring to? I get that you would need fiber/FTTP for the 500Mbps upload, but what is the difference between 10 and 50Mbps upload? Re: Arris SB6190 I'm helping! The SB6190 is supported by Cox up to 500Mbps down as perhere. However I don't know what Cox requires for different upload speeds. I think it can be anything from 10-50Mbps for the 500Mbps plan. I think it depends on if your area is mid-split, but Cox doesn't seem to have mid-split hardware requirements like other ISP like Comcast. I haven't even heard what the upload speed cap is for a DOCSIS 3.0 modem like the SB6190. Have you heard of anything? Not so much related to OP, because they are reporting a download issue, but the question has come up in other posts. Re: slow speeds since Dec. I have heard a few complaints from CA recently but CA is huge though, so they might not be relevant. Is it southern CA? If so, see here, or is that you? So far now one has posted any data on the nature of the problem, like if it's signal related, congestion related, or something else like bad routing. If you want to troubleshoot with the userbase here and not Cox, start with telling us something about your network and the problem. What model modem and router? If applicable, have you tried connecting direct to the modem? Does it effect both download and upload? What does a speed test show? Do you see packet loss or latency issues?