ARRIS SURFboard mAX Plus (8x4) DOCSIS 3.0 Cable Modem, approved for Cox, Spectrum, Xfinity & more

Just got this modem to replace our Comcast rental modem and eliminate the rental fees.Got it connected and up and running without problems. I got the refurbished model, and so far, so good. Modems are very reliable hardware, so chances are if the refurbished one works out of the box, it will keep working for a long time. I am getting my advertised speeds of 30 Mbps without any problems or hickups.PRO's:- Easy to set up and activate (just plug it in and activate via Comcast activation website or phone)- Getting advertised speeds of 30Mbps on my line, solid connection- Small form factor, can stow it away behind a book shelf easily.- Works with most cable ISP's- Good price if you get it refurbished.CON's:- Really none so far, solid modem.

Works great, no problems. Easy setup. Just plug it in and call comcast with the id numbers on the label, but the numbers are in really SMALL print. It was setup within an hour.HOWEVER, speed did not increase over by Docsis 2.0 modem, using COMCAST. They had been pestering me for months about how much better a docsis 3.0 modem is, it wasn;tI was currently getting 30 mbps with an old docsis 2.0, but the performance package from Comcast had been upgraded to 50 mbps. The local representative said that the speed was guaranteed UP to 50, not that I would get 50!! So I upgraded to blast for free for 30 days, up to 150 mbps, instead I got 95 mbps consistently, with this SAME modem. So my modem is obviously not a problem, it is just that Comcast throttles down the speed to 30 no matter if you have docsis 3.0 or not.Solution is to go to your store and ask "What are your customers getting?" or rent their modem for a month. If the speed doesnt increase, then demand a refund and refund their modem. If it does increase, then buy this modem to replace the rented modem.PS Even my router a Linksys EAA6200 is performing better, less drops.

I have been using this modem for 1 year and 4 months, so far, with no issues. I unplug it once a month to let it have a breather but that may not even be necessary.I've been using it with Comcast Xfinity 100Mbps in Fort Myers, FL. My data speeds have been good, very few connection issues and there has rarely been any downtime. Any downtime I've had was related to Comcast, not this modem. All I had to do was plug it in, call Comcast and it was working fine.I use this with my own Google OnHub Router made by TP-Link and they've had zero connection issues in nearly 1.5 years. I highly recommend this modem and cannot find anything I dislike about it.

I bought this cable modem prior to switching over to Cox Communications. The cable modem works well and the speed I’m getting is about 200Mbps with a 300Mbps subscription.I haven’t had any issues since installation but during the installation the installer ran into a hiccup when they said the cable modem needed to be released from a previous registration. It was resolved and I was up and running.This review asked for a wi-if rating. I have one star for that aspect as this cable modem does not provide WiFi by itself, a separate router or access point would be required for that...

I started having a lot of problems with my 50MB Cox service. My games would lag out and it would ruin my gaming. I was sure it was Cox's fault (later I found out I was only partially correct). After a total of 8 hours on the phone with TS over 3 days ( and lots of experimentation), I found the solution. I upgraded my modem (Arris SB6141) and my WiFi router (AC-1900). This eliminated most of my lag. I then talked them into upgrading me to the 300MB service, which fixed the rest of the problems. I went from lagging several times night to lagging only twice (brief moment) in the last 3 months. This purchase was a critical part of my solution. I have done throughout testing and the modem seems to bond the channels well. I get about 250MB actual throughput on my 300 MB Cox service here in Phoenix. Not bad. The tech support person expects dI would only get around 225, so I am happy.

I've been using the SurdBoard line for over 10 years, but over the last year or so, I have gone through 5 of these SB6141 black units. They all arrive looking like it is all new packaging, and work fine when first hooked up. They were cheap so I bought several, and have now gone through them all. Best I can tell, they don't like to have the power cord disconnected/reconnected. That seems to fry something that prevents them from coming back online, instead endlessly cycling through the status lights. I'm going to try NetGear. Trying to save money has ended up being more expensive, not to mention the inconvenience of no Internet.This started several days ago when I unplugged the modem when I saw that my Data Usage with Cox was at 99%.When I plugged it back in, it did not come back up.I changed it out for another one and I was good to go.As luck would have it, the next day Cox had an outage, but I didn't know it.So I unplugged/replugged the modem several times with no luck.When Cox resolved their issue, my modem would not come back up.So I changed it out for my last one and it is up and working, and I immediately ordered a NetGear CM700.But I will not be unplugging this last Arris SB6141. I can do a reset via my phone through Verizon.Makes me wonder if the Chinese got hold of a bad batch and re-sold them as "new".