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A great little modem!
Before using this device, I couldn't get the maximum speeds offered by my ISP under my current internet plan. Now, my home network is a speed demon!
This unit has almost doubled my (already pretty fast) download speeds from near 50Mbps to over 80Mpbs, without me having to change my service plan with my ISP. It's easy to set up and about a third as large as my previous Arris modem from 2015. I'm kicking myself for not buying this unit sooner -- I probably went over a year with my speeds capped, not by my ISP but by my old slower modem! I'm a happy camper now.
Highly recommended!Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: surplus40
Great value, good performance, hard to setup
The modem is fine once you set it up. The ancient stock firmware was pretty unstable, the modem would get stuck every few days. It would reject the latest FW pushed by Comcast complaining of the incompatible image. I’m a DOCSIS engineer, but it took me a few days to make Comcast upgrading the modem to an intermediate FW, then to the recent one. Now it works fine.Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: missouri-liquid...
Money well spent!
I was renting my internet modem from my cable company, kept getting booted from my games. After this came in I've yet to get booted. My internet is blazing FAST now. I'm finally getting what I pay for every month. LOVE IT! Super easy to set up, and I like how small it is and that I can hang it wherever,however I want with the built in mounting setup. Very pleased with this purchase!Read full review
Verified purchase: Yes • Condition: new • Sold by: theuniqueantiqu...
Trust, but Verify
Works almost as advertised. I was disappointed with the operation of the two RJ45 sockets provided at the rear of the unit. I had hoped that one would connect to my WiFi router, and the other directly to my desktop pc, giving both devices the benefit of full-speed as provided by my ISP. Alas, after much horsing around and after a deep-dive into the documentation, that's not how it works.
Other than that, it works well. Read full review
Verified purchase: Yes • Condition: new • Sold by: best_buy
Great modem
Excellent replacement for an SB6121. My Comcast internet service was unstable, I had several bugs upstream. This has been solved by there modem. One thing to note: your home network can no longer be 192.168.0.X. change it to something else in order to be able to browse to the modem to check status. It occupies both the 192.168.0.x and 192.168.100.x spaces because it has two Ethernet ports.Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: the_undercutters
Great price, easy setup!
I bought this so I could stop paying Comcast for the modem. Best price I could find. Shipping was quick. Setup was easy. Just note Comcast does not provide unlimited data when using your own modem. Read full review
Verified purchase: Yes • Condition: new • Sold by: theuniqueantiqu...
Got SB8200 to work with hassels
At first NOT working.. Too two days working with multiple Comcast reps to get modem working... Finally got rep who knew what needed done.. (Almost not worth the "VALUE" hassel in time spent) Update and a re-boot and is now working... But Download connection light on front shows "not good" (BUT modem is working as fast as connection I have 400mbits) still need good wired Megabit router... got NICE cheap used HP Procurve switch to get full network ( W IP Camera's) up and running.... Old man NOOB to this stuff... Learning curve to say the leastRead full review
Verified purchase: Yes • Condition: pre-owned • Sold by: thomasjon1
I actually had to end up returning becau...
I actually had to end up returning because the type of internet I have I have to use one of their modems. Pretty disappointing since I really like Arris modems.
Verified purchase: Yes • Condition: pre-owned • Sold by: 2nd_hand_trends
Don't buy this model. Speed issue.
Comcast customers, I will not buy this not made for Comcast but Comcast endorsed modem in their short list. Even though it is of the latest DOCSIS 3.1 and supporting speed at Gb/sec and yet, when used with Comcast, it never shoot above 105 Mbps and average is 98 both with ethanet cable while my serice is up to 250 Mbps.
These is some built in thing inhibiting the speed that all parties and people forum throw up their hands and admit no knowledge of what is going on.
If you have 75 or 100 Mbps service, OK. Read full review
Verified purchase: Yes • Condition: pre-owned • Sold by: justnano
Works well
Modem works well. You have to call your cable company to set up the MAC address. I have Comcast and noticed the upstream light stays green, but apparently this is normal for their service.
Verified purchase: Yes • Condition: new • Sold by: salssecondhandshop