Features:

  • Comcast Xfinity and Cox Cable APPROVED! Spectrum (Charter, Time Warner and Brighthouse) and others pending approval.
  • Not compatible with: Verizon, AT&T, or CenturyLink. Not compatible with bundled voice services. No Telephone Port
  • Cable Modem only (no WiFi router). Compatible with major U.S cable providers. Supports IPv4 and IPv6 Internet browsing standards
  • DOCSIS 3.1 cable modem, the newest technology being offered by Cable Internet Providers. Backward compatible with DOCSIS 3.0.
  • 32 DOWNLOAD and 8 UPLOAD Channels. BEST for 300 Mbps Internet plans and above! Perfect for streaming 4K HD video and online gaming.Up to 10+ Gbps DOCSIS 3.1 Download Speeds
  • Gigabit Ethernet ports. Create 2 Home Networks, both capable of gigabit speeds. (Note, Cox Cable does not support activation of 2nd Ethernet port)
SB8200 on Comcast is great!

Could not believe Comcast self activation worked from my computer because I tried it two other times before with other surfboards and did not work. So far everything is running great. I am on the Blast 200 plan and speeds are 240 down and 13 up. Hooked ethernet directly to computer for self activation and once it was done unplugged the modem and connected router to modem and restarted modem and everything is running great. The thing is I didn't have to call them to activate it.

***IMPORTANT INFORMATION ABOUT THE FRONT PANEL LEDs FOR COMCAST XFINITY DOCSIS 3.1 SERVICE***

!!Important information about the front panel LEDs for Comcast Xfinity DOCSIS 3.1 service!! If you have DOCSIS 3.1 service available in your area with Comcast, they do not currently support DOCSIS 3.1 for the UPSTREAM (SEND) channels. They support DOCSIS 3.1 for the DOWNSTREAM (RECEIVE) channels, only. What this means is that the modem will show a BLUE light (DOCSIS 3.1 indication) for the RECEIVE channels and a GREEN light (DOCSIS 3.0) for the SEND channels. This is really not an issue, as the RECEIVE channels are the most important for most all users, as the download speed is usually what most people are concerned about. The reason I am posting this is because I spent a lot of time on the phone with Comcast, ARRIS, Comcast, and then a Comcast technician, due to not having a blue SEND light showing. Not ONE technical support person (not even ARRIS) knew this or mentioned that the blue SEND light would not come on, as there was no DOCSIS 3.1 currently available for the UPSTREAM channels! As a matter-of-fact, the Comcast technician said that the modem was defective...which it wasn't. The modem works fantastic and was a replacement to the Comcast Xfinity XB6 Gigabit Gateway I was using. I highly recommend this new SB8200 modem. But, make sure you have available, and are subscribed to, the DOCSIS 3.1 service at your location. If you are not paying for DOCSIS 3.1 service, adding a 3.1 modem will not give it to you. This is a solid modem!

So far so good. No system event errors

So far so good. No system event errors. No/low Correctable/Uncorrectable errors. No disconnects. Running rock solid with the Broadcom chip. Returning my NETGEAR CM1000. It had daily disconnects, daily event errors and high daily Correctable/Uncorrectable errors. Reminded me of the SB6190 and CM700 Puma6 issues. If this changes, I'll update. I have read that SB8200 has substantially more memory. It has 2 Gigabit ports for 2 separate networks (Global IP's) and can utilize link aggregation. "Inside the case, Arris SB8200 is equipped with a Broadcom BCM3390 chipset, 128 MB / 16 MB of flash memory and 3 GB of RAM. Netgear has also equipped the CM1000 with a Broadcom BCM3390 chipset, 128 MB of flash memory and 256 MB of RAM." FYI: In previous ARRIS generation modems, the send/receive LED's would change from GREEN to BLUE to indicate the use of bonded channels. In the SB8200, the send/receive LED's will stay GREEN when the modem is being utilized in DOCSIS 3.0 mode regardless of bonded channel use. The send/receive LED's will only change to BLUE if the modem is being utilized in DOCSIS 3.1 mode.

This one should be good for the long haul

Installed this beauty over the weekend replacing the new Linksys flagship AC1900 with the Puma Chipset. I have heard about the Puma Chipset being problematic and I can confirm that first hand. The Arris has the new Broadcom Chipset, now I'm Broadcom chipset fan. This modem is significantly smaller than your traditional modem but packs some power. The photos below show the standard size modem sitting next to the new Surfboard. We have Spectrum 300/20 and I'm getting 290/23 wirelessly using 3 Velop nodes and the signal has not dropped a single time. This one should be good for the long haul. Thank You, Arris! P.S. This is a modem only and does not have built-in wireless. It has one job and it does that job very well... Sept. 29th - 3-month update. Still working flawlessly and my connection has not dropped one single time. Never have I gone 3 months without a single drop. Final report: I don’t need to worry about WiFi anymore. Thank You, Arris! Dec 22nd - 6-month update. Still going strong and not a single solitary dropped connection for 6 straight months now. Usually, Time Warner drops the ball every few months but this has been a very good run. I am very happy with the new ARRIS 3.1 and my WiFi worries are over... The jury is out and it's all good news! Mar 3/2018: After reading numerous other reviews I have noticed that the modem does run a bit warm to the touch right on top and other reviewers noticed packet loss during long heavy use. Nothing I was ever concerned with but since I obsess over having awesome Wifi I decided to add a fan to the side of the modem and now it's at room temp 24/7. I can't say if it helps performance or not but cooler is better and I feel better knowing my awesome new modem is comfortably cool. I'll add a couple of photos with the fan on it below. Keep in mind this is much smaller than your traditional modem 5" x 5" exactly. I attached a 4" x 4" fan on the side that sucks air through the unit. The whole unit is cool to the touch under any usage conditions now. Speed tests are all very strong now but I've been tweaking other things so I can't say if the "cooling" actually helps with speed, it sure can't hurt!

SB8200 - Quick Overview

Upgraded from SB6121 to SB8200 on Comcast 200/10 plan. SB6121 was running approx. 137Mbps/12Mbps with latency to Comcast speedtest @ ~29ms. With SB8200, approx 215Mbps/12Mbps with latency to Comcast speedtest site ~14ms, with 24+1 bonded channels down and 4 up. Good overall SNR and power levels (which I had on the older modem also). Box is sealed from factory with with clear tape disc and black security seal sticker on bottom of box (see picture) Included in the box is 12VDC 2AMP power supply and CAT5 Ethernet cable (see picture) Size is approximately the same as the SB6121 (see picture - black SB6121 left, white SB8200 right) Unit tends to put off a little more heat than the SB6121 it replaced (warm to the touch on top of unit, but definitely not hot) Plugged SB8200 Ethernet (port 1) into computer Ethernet port via standard Cat5 cable, connected coax (Comcast), plugged in power supply. After about 45 seconds of no lights, lights started coming on, one-by-one. Opened browser, was redirected to Comcast activation page. Tried automatic activation with Comcast username and password and was greeted with error that I had to call Comcast. Powered off modem and decided I would try the process over again from the start. Instead of using username and password, used Comcast account # and SB8200 was provisioned very rapidly. Haven't tried SB8200 Ethernet port 2 as I don't have a need and I doubt that Comcast would allow residential customers to purchase static IP's without a business plan per their stated policies. Status page is located at the familiar 192.168.100.1 and Spectrum Analyzer is @ 192.168.100.1:8080 (u: admin p:password) Did I need the new SB8200? no. Can I tell a difference in webpage load times? no Is this futureproof? for now.

Works great with Cox Ultimate in San Diego, CA

Works great with Cox Ultimate internet in San Diego, CA. I'm getting 350 down and 40 up with a consistent sub 8-10ms ping via speedtest.

ARRIS SB8200 on Spectrum/Time Warner Cable is fast and easy to connect - less than 5 minutes!!! Speed difference is incredible!

It took less than 5 minutes from start to finish to connect to the ARRIS SURFboard SB8200 cable modem toSpectrum (Time Warner Cable). This modem is not on their approved list yet so I called them, got a technical support person on the line in about 30 seconds, and they activated it immediately. My download speeds went from 108 Mbps wire/55 Mbps Wi-Fi on an ARRIS SURFboard SBG6782AC DOCSIS 3.0 Cable Modem/ Wi-Fi AC17 Router to 386 Mbps wired/354 Mbps Wi-Fi. I connected the modem with an ARRIS SURFboard AC3200 Wi-Fi Router with RipCurrent and then paired the router with an ARRIS SURFboard AC1200 Wi-Fi Hotspot with RipCurrent. Unbelievable speed and coverage!

Fine modem but use with its own power adapter!

Works great. Solid connection, just like the SB6121 it replaced. I use it with Comcast, I just gave them the MAC address off the modem's label and it was up & running right away. My 6121 topped out for me at about 120-130 MBps, the 8200 came in at 160 (I'm sure the 8200 goes way faster than that, but I have a 150MBps data plan at the moment.) A word of caution about installation: I used this modem to replace a Motorola SB6121 which is a slower DOCSIS 3.0 predecessor to this modem, and from outward appearance is almost identical. I thought I'd be lazy and reuse the 6121's power adapter rather than the one that came with the 8200 so that I didn't have to fish the power cable through the back of my cabinet. The 6121's adapter plugged into the back of the 8200, no problem, so I thought it was fine. But, for the next few hours I couldn't figure out why the 8200 kept resetting itself whenever I tried to put it under heavy load. Then I realized that the 8200 requires almost three times the current that the 6121 requires (2000 mA vs. 750 mA.) After replacing my old power adapter with the one that came with the 8200, it worked fine. So, make sure you use the included power supply or at least one that meets its specs.

Works perfectly with Spectrum

This modem gives me about 115 Mbps vs. the 50 Mbps I was getting from my old SB6120 Surfboard modem. I wasn't sure getting this modem would help with my speeds at all since I live in an old apartment building and wasn't sure that the wiring in this place was exactly up to date, but obviously my old modem was my main bottleneck, so now I'm a happy camper! I had no problems activating; I simply called up Spectrum, gave them the MAC address and voila! I don't know how far off "DOSCIS 3.1" really is, but I just got this anyway so I'd be good to go whenever Spectrum updates to it. They're still using DOCSIS 3.0 so there's presently no performance advantage in this modem vs the half-priced SB6190. So if you don't want to dole out $200 for this, you're fine getting the SB6190 for half the money.

Full 941 Mbps down and 41 up with Comcast Gigabit

10-month update: This is still as solid as the day I bought it. I've had zero issues to report. I will add that I verified the Intel I211 Ethernet solution is capable of full gigabit speeds over the Internet. Original review: This is an excellent cable modem by all accounts. I previously had Xfinity's 'Blast' Plan which advertised 200/10 Mbps with an SB6183. That setup was rock solid for almost two years until a major problem with the cable system that was almost a month of troubleshooting. I used this as leverage to... negotiate... a free upgrade to the gigabit plan which was available in my area. I think I was told 5 times that they'd have to come out and run fiber before finding someone who knew about DOCSIS 3.1. Anyway, once I secured the gigabit plan my speeds (expectedly) plummeted on my old SB6183 which promised 686Mbps. Well, not when subscribed to the gigabit plan it doesn't. It was only pulling 20-30Mbps with that configuration. I had already placed the order for this modem and had tempered my expectations for actually getting gigabit speeds. Upon receiving the modem I plugged it in, it took a minute, told me to go to comcast[dot]com/activate, and enter my account information. Maybe 3 minutes later and after a couple of automated restarts I held my breath annnnnd 240MBps down and the full upload speed on my primary computer. Hmm, what's wrong? Ah I left the speed control on my old settings... Let me disable the speed control, turn on jumbo frame and turn off flow control. 941 down, 41 up. Now that's the good news: this product delivers exactly what it promises on the advertising. 5/5 stars for the modem! (barring the 1.4GBps connection and 5 or 10GBps it shows in some localities.... you're still limited to 1GBps unless you can sweet talk your provider into giving you two IPs. This is for the case of 1.4 which requires link aggregation and a whole other mess to be able to actually connect a device at that speed. The 5/10GBps is just marketing fluff and is the theoretical top speed of DOCSIS 3.1). Now, that being said there is one major consideration for whether or not you should actually buy this: is the rest of your equipment actually able to handle gigabit speeds? My main desktop has a Killer E2400 NIC and connects through my main router which is an Asus RT-3100U connected via CAT5e which is what works at true gigagbit. This is the only device I own that can actually perform at the full speed. I also have a desktop with a Realtek 8168e gigabit LAN adapter connected via CAT6 (also tried CAT5e cable to verify) that can only max out at 300 Mbps no matter what kind of tweaking I do. Local transfers between the two devices work at ~95 MBps but trying a speedtest maxes out the CPU and it only goes to 300. My secondary router, which is a Netgear R6250 with all the traffic shaping features disabled, can put about 500Mbps through it. Also my wireless devices connected at 867MBps link speed see 200-400Mbps of actual throughput. None of this is bad, per se, but just keep in mind you will need a very recent and high-end setup to actually use gigabit at the full speed, If you're currently using QOS (traffic shaping) of any kind I'd recommend turning it off as A) you won't realistically need it and B) the speed will overwhelm the shaping in the first place. There is a variety of information available to finding out if your current gear will handle gigabit Internet. I'd start out with a Google search of '[router] gigabit internet' to see what the results are. Technical information: Xfinity Gigabit in Northern Virginia (highly competitive market). Results will vary. Docsis 3.1 connected to 24 channels down, 4 up. (32 down 8 up max supported by device, but 24/4 is max in my area). 11 days current uptime, 0 uncorrectables, moderate correctables for that timeframe. Note that if you look at your channel configuration (192[dot]168[dot]100[dot]1 for most people) you will see an 'Other' channel type listed. This is for binding to 3.1 specifically and is nothing to worry about. Light definitions: all solid green means DOCSIS 3.0 fully connected. Blue second light is 3.1 down. Blue third light is 3.1 up. Flashing means 'attempting to' for whichever light is flashing. Also most of Comcast's network (nearly all) does not have 3.1 up so as long as you're getting your advertised speed up there's no need to worry.

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