Arris SB6190
Hi, The SB6190 won't keep a steady high rate. I use the cox online reset and then have to hard boot the modem in order for it to get close to 500Mbps (If I don't hard boot the modem after the reset,...
Forum Discussion
ddowie8
I'm sorry to hear you are experiencing speed instability. I know this would frustrate me too. I was able to locate your account using your forum credentials to check your modem's connection to our network and everything looks good. Are you still trying to connect with the SB6190? Please confirm that your modem is rated for subscribed speeds. https://www.cox.com/residential/support/cox-certified-cable-modems.html
I see you've gotten some input from another community member. (Thanks, WiderMouthOpen!) Please feel free to continue troubleshooting here, but keep in mind that some issues will beyond the scope of support available from our users. If you need additional assistance once you have exhausted troubleshooting on your end please send us an email containing your full name, complete street address, detailed description of the issue, and a link to your forum post to cox.help@cox.com. If you prefer, you can also reach our forums moderators via social media on Facebook, Twitter or Instagram.
The SB6190 is supported by Cox up to 500Mbps down as per here. 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.
WiderMouthOpen Honestly, I haven't done a ton of research into our upload requirements. From what I've seen when checking specs on different modems, approved devices are aligned with the tiers they are compatible with by our back office teams, and I know our network provisioning and engineering practices are designed to enable customers to receive the speeds they are subscribed to.
Once OP confirms what device they are currently using we'll be able to dig a little deeper into what might be going on.
