ContributionsMost RecentMost LikesSolutionsIf you have a SB6183 running slower with just 4 channels (seen at http://192.168.100.1) you can get full speed and 8 channels back See also (locked) thread: Only getting max download of 33 Mbps with new DOCSIS 3 Motorola SB6183 16channel modem and Premier upgrade It took over a week to get to the right folks in support, but eventually the above forum post, mentioned to the @CoxHelpperson I was Twitter DM'ing, made all the difference. See also: TinkerTry.com/sb6183 Hoping this forum post can help avoid some early adopter pains for other Cox customers who bought a SB6183. Let's hope they add the self-install menu option for this modem soon, so that proper provisioning would be painless. Re: Does Cox support any DOCSIS cablemodems for Ultimate (8 channel) that also have 2 telephone lines (2 RJ11 jacks)? Thank you all, for definitive answers, greatly appreciated! Sure do wish I could have log viewing back someday though, so I'll be staying on the lookout for new options down the road. Especially handy when having service outages (which have been long, overnight, lately in my area). Re: Does Cox support any DOCSIS cablemodems for Ultimate (8 channel) that also have 2 telephone lines (2 RJ11 jacks)? I found this model: https://www.arrisi.com/products/product.asp?id=80 and the slightly newer July 2012 model called the TM822A/S,seen in thespecifications PDF, with user guidehere. Any chance Cox offers this device? Does Cox support any DOCSIS cablemodems for Ultimate (8 channel) that also have 2 telephone lines (2 RJ11 jacks)? I don't want a gateway (no WiFi), and I would prefer something a lot newer than the 2.5 year old bulky Cisco DPQ3212, Cox's listinghere, Cisco's listing here. See alsoChoosing the Right Cable Modem - Cox Communications. Note that theDPQ3212 is missing from the Cox Compatible Cable Modemslist. I'd prefer to have Arris/Motorola like functionality at http://192.168.100.1 with logs I can view myself. I have occasional issues that are easier to track myself, without having to call Cox every time. Do you have anything newer to offer me, for my Cox Residential service with Ultimate internet package, and 2 phone lines? I'd rather self-install, especially if it doesn't mean paying a monthly fee for the modem, but I first just want to see what you'd support besides the DPQ3212, if anything. Thank you!