ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit WiFi , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

#1:ARRIS (SB8200-RB) - Cable Modem - Fast DOCSIS 3.1 32x8 Gigabit WiFi , Approved for Comcast Xfinity, Cox, Charter Spectrum, & more | 1 Gbps Max Internet Speed, 4 OFDM Channels - Renewed

 

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 Perfectly easy install, and it works great!
I bought the renewed product instead of brand new, which saved about 40% on the price. When it arrived it was in a brown cardboard box instead of the white, attractive one that you'd expect to see on a store shelf, but that was the only difference. It came with the modem, power adapter, FCC paperwork, and a quick start guide. While downloading an app to configure the device was annoying, it made for easy install - scanning a QR code on the modem brought up all the information I needed to relay to my internet provider, so setup with them once I got someone on the phone was a matter of minutes. We pay for 600 Mbps for our internet speed so this one easily provides all of that and has plenty of extra capacity for more if we decide to upgrade someday.

I'm always wary of renewed products like this that have to be properly configured with outside entities, but this one went perfectly. I bought a brand new one at the same time just in case and will be returning that, because this renewed version works perfectly for me.

Modem works fine, getting it working with Xfinity was not quick or easy
This review is for an ARRIS Surfboard SB8200-RB DOCSIS 3.1 Cable Modem connected to Xfinity cable. I was having mysterious dropouts with my old Netgear cable router modem combo. Once I got the new one working it did seem better, but getting it working wasn't quick or easy mostly due to Xfinity. I followed the instructions to get the Arris app on my phone, and followed the instructions which required inputting all my personal info. I didn't like that. Then it said to install the Xfinity app. I'm guessing you could just do that and skip giving all your personal info to Arris. The Xfinity app was not easy to use, upgrading your customer-owned modem is not an option at first. I finally figured out how to delete my old modem, then the ability to add the new one appeared. I entered the MAC number, and after a few minutes it said it was detected and working. Great! But I had no internet. After checking it over and restarting it a few times by unplugging and by restarting via the app I started wondering if the new modem was bad, so I tried deleting it and reconnecting my old modem, and entering that MAC number. Same thing happened, the app said connected, but I had no internet. I was sweating, with no internet. I reconnected the new modem, same thing. Eventually, bam, I had internet access. Apparently there was a substantial delay after Xfinity detected the new modem before internet access was enabled. Can't say if that's normal, or if Xfinity was having some problem at the time, but if it happens to you, try waiting.

Refurbished is a JOKE.....they do not check if modem is still registered....USE Xcaliber to fix
Shame on you Amazon for allowing vendor to claim that they "refurbish" these units. If the previous owner did not call Comcast and disable it being in their account, then the modem is not usable by anyone else.

Mine came yesterday and that is what Comcast found...previously registered on the East coast and no way to cancel the connection so a user on the West coast could use it. After an hour of messing around with the Comcast tools for modems, my technician found a little used tool called "Xcaliber" which did allow the old registration to be removed. The technician said there is almost no documentation inside Xfinity for it and a friend just happened to tell him that it existed. So an hour later, I had a working SB8200. It will take some time to find out how well it works.....probably 5 stars worth. But for the moment this vendor and the product gets 1 star because of false advertising. It is not refurbished. It is lucky if they cleaned it off with soap and water!. And I see hundreds of reviews on Amazon and eBay that all talk about useless cable modems that have no be released from their previous owner's account.
Dr. Ted Cooper
retired Amazon

ARRIS SURFboard SB8200-RB Modem is Good but Ignore Quick Start Card
?? Refurb ARRIS SURFboard SB8200-RB Modem works and mine looks new for a lot less money.
?? 2 Ethernet Ports are useless for most buyers. You need a Router with 2 WAN ports and support Link Aggregation.
?? When connected to DOCSIS 3.1, The White and Blue LED can be Very Bright. Do Not Block Air when blocking the light or the modem can overheat and cause disconnection and other problems.
?? Ignore Quick Start Card! It has Errors and Arris app does Nothing.
?? Arris SURFboard Central App is just a "scam" to get E-mail and other data. Manual is online without this.
?? This App then point to download other apps. For 1 time use, Don't download Xfinity and other apps to activate the modem. Just plug it in and call the ISP with the MAC address printed on it. Note that any Modem can't be activated by Xfinity Web site in the past. They killed this method.
?? Many Browsers will "Freak out" connecting to the Modem @ 192.168.100.1 because does not have a valid https key. You have to ignore this warning. *Connecting to the Modem at this address has Nothing to do with Modem Activation!*
?? Default login when connected to the web interface is often admin and Password is last 8 digit of the serial number *NOT* password as stated on the Quick Start Card. You will then have to set a new password. There is Nothing to change for most users but can show signal levels to tell when there are cable problems for people that can work with coaxial cable and DOCSIS 3 3.1 systems properly. Junk Cable and other problems in a building will cause slow internet and disconnections.

Acceptable
Works for internet but setup can be a little troublesome. So I had trouble following along in the app. You need internet access to set up. I had to reconnect my old modem to get registered. After that I connected this refurbished modem. I got as far as a reset signal was sent, waited 10 minutes. I then believed it was not working. Had 2 blue lights and 2 lights that seemed to be off or at least not green. The app will guide you along and get you connected to your internet provider via phone, that at least was a help. I got through to Spectrum and had a 2 minute wait. Be nice and explain simply, I said I bought a new modem to replace old modem. She verified my address, asked for the old mac id, then the new mac id. Next she said modem would reset which it did. At first I get one at a time up to 4 green lights, then the transmit and receive turned bright blue which makes it appear that the power and network light are off. This is what confused me. Over the next couple of hours I waited, unplugged and replugged modem a couple times, still same thing. After a search on the internet, yes i'm now connected. I found on several forums, or faq on manufacturer site that some units the lights will appear to be off. If you look through the open grill case, i can see inside that they appear green, blue, blue and green, yet on the outside I only see 2 bright blue. The lights are like flood light when they need to be accent lights. I also had trouble loging into the webpage for admin access to modem, gotta use your browser for this. I ended up doing a factory reset with paperclip into the hole on the back, after that I could get in. use admin and the last 8 digits of the serial number on bottom of modem to access. Nothing much in there I need to change, but i alays like to look around. I finished the setup in the app, which now is mostly useless. It only tells me the serial number and mac id and has a copy of spec sheet and manual. Nothing else. It would be nice if the app showed you the status (and allowed turn off of lights) and allowed you to login to the admin settings within the app instead of having to use a web browser. app is kinda lame and the setup procedure although was partially helpful not the best experience. I was excited to get a new modem with an app, but i doubt if I ever use the app again.

This still is a good choice. My old modem was bought 11 years go when speed was like 20Mbps. It had room to grow up to 150MBps. Spectrum increased to 200Mbps but that old modem was only giving me 125Mbps. Only ended up costing me like 7.67 a year to own vs renting which i'm sure is more than that. I decided it was time to upgrade even though it was still working.

This modem has room to allow for growth over the coming years. I'm now getting 233Mbps which is far below it's max rating of 1000Mbps. This is fine for video streaming movies and I have lots of smart lights and home control devices along with alexa for voice control. The new speed while not necessary does help. I notice some apps load data faster.

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