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SB8200

DOCSIS® 3.1 Cable Modem

  • 523 Topics
  • 1,365 Replies

SB8200 Announcement (2)

523 Topics
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seven5aceThe Many
asked in SB8200
Sb8200 Died, RMA request?

To preface I’ve only ever owned an Arris as far as I can remember and actively choose to buy them. Today I was in my living room browsing on my phone and lost internet which I attributed to Optimum because they are awful. I tried power cycling to no avail but notice when I do the lights all turn on simultaneously and stay on? I cannot reset it or cannot tell if anything happens. It won’t let me connect to the internet hard wired or through a router. I went through trouble shooting with Optimum and they saw no errors on their end. I tried a separate modem and 2 routers and they both can reach internet. I have no choice but to believe some reason this router died. Purchased from Best Buy in NY 11/29/23, I believe it’s under warranty but I no longer have the receipt. How should I proceed?

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The Many
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BAG1942The Many
asked in SB8200
Update phone model

My network shows my previous phone. I want to update the network to my latest phone model. How do I do this?

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CASEYLPThe Many
asked in SB8200
ISP says they are pushing DOCSIS 3.1, Modem Says Differently, Arris Agrees with ISP.

Introduction For starters, I live in an apartment complex that only has one ISP available (Cox). I purchased a SB8200 and a TP-Link ARCHER AX20 for the upgrade of service I was getting through cox. Number 1 Red Flag: The mobile app (SURFBoard Central).. I mean what a waste of time. This app serves no purpose other than showing you a email link to download a desktop app named “Fing” like who cares lol. Number 2 Red Flag: Upon reading the user manual, you can see the LED status screens on the front: USER MANUAL​​​​ The plan for my internet is set to utilize DOCSIS 3.1, however the LEDs on the front all line up for 3.0. Troubleshooting: Obviously, restarted the modem Checked connections Use proper cables Interface Status Screen Side note: what a pain it is to get to this screen. Upon finally checking the status screen, I am met with these numbers: DOWNSTREAM CHANNEL STATUS I do not know if these numbers are correct, but one other note I had was on the “Product Information” screen, it list

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Rockstar!
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CoyoThe Many
asked in SB8200
Firmware update on sb8200

I called my provider and the firmware update failed. Is there another way to update the firmware.

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plemans
Juggernaut
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JEBakerThe Many
asked in SB8200
location services for Surfboard Central app on iphone

I don’t see Surfboard central app in Location Services to allow Surfboard central app to connect to my iphone

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Wi-Fi Warriors
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The Many
BonScott1215The Many
asked in SB8200
Moden SB8200 died

I tried going to the support site and entering my serial number, but it keeps saying “ We were unable to locate your serial number” I’ve only had the modem for a year and a few months. I need a way to contact to get a refund because it is supposed to have a 2 year warranty. I have tried all the trouble shooting tips I could find online. When its plugged in I only have the power light turn on and nothing else.

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Wi-Fi Warriors
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Pam WilliamsThe Many
asked in SB8200
First time setup

Just purchased this thing and trying to hook up. I have internet but can’t navigate or ping 192.168.100.1 I am about to return this

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Wi-Fi Warriors
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The Many
stevecoh1The Many
asked in SB8200
Cannot connect my new Surfboard SB8200 to my Google Nest router

I’m in a three-way blame-shifting between Cox, Google(Nest router) and Arris. Two days ago we had an electrical power outage. This apparently damaged my existing Motorola router. A Cox technician came out and proved to my satisfaction that their network was working. Working through his modem, I was able to connect my router to it and reach the internet from my computer. That proved to me that the problem was the router. So I went and bought this Arris SB8200 at Best Buy yesterday and attempted to connect it. The Arris was connected to the Internet through Cox. I was able to connect to the Net through an ethernet connection to the modem. But the modem would not allow the Google Nest to make a connection to the Internet through the modem. I will call tech support as soon as they open, but maybe someone here can help? Is there a way to talk to the modem through IP if I connect a computer to it via internet?

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plemans
Juggernaut
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The Many
ALCThe Many
asked in SB8200
SB8200 OFDM Signal Quality

Here is a screenshot of my modem status right now. What is going on with the OFDM PLC power level and SNR/MER? Is that normal like my ISP says?

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plemans
Juggernaut
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The Many
TSHRED56The Many
asked in SB8200
Rapid light blinking and no Internet SB8200

I lost Internet connection. Unplugged it last night and when I plugged it back in last night all lights rapidly blinking intermittently. Tried reset and it did nothing. Unplugged it Woke up this morning, plugged it in, and now zero lights. Front or back. About 2 years old and I think it's done?

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plemans
Juggernaut
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The Many
Jc33777The Many
asked in SB8200
sb8200 and optimum

My sb8200 arrived today. I gave optimum tech support the mac and they say everything is set up and shows it should be working on their end. But it's not. The internet light flashes for a couple minutes then will go solid for about 30 seconds then it resets itself. I pulled the event log from the modem. Any one have any insight. 23/02/2025 22:11:54 critical TFTP Request Retries exceeded, CM unable to register 23/02/2025 22:11:54 critical TFTP failed - Request sent - No Response;CM-MAC=10:e1:77:71:01:f5;CMTS-MAC=00:01:5c:b4:c8:56;CM-QOS=1.1;CM-VER=3.1; 23/02/2025 22:08:51 critical Config File Rejected due to Invalid or Unexpected TLV 11;CM-MAC=10:e1:77:71:01:f5;CMTS-MAC=00:01:5c:b4:c8:56;CM-QOS=1.1;CM-VER=3.1; 23/02/2025 22:08:51 critical TLV-11 - Illegal Set operation failed;CM-MAC=10:e1:77:71:01:f5;CMTS-MAC=00:01:5c:b4:c8:56;CM-QOS=1.1;CM-VER=3.1; 23/02/2025 22:08:48 error Primary lease failed, IPv4 fallback initiated;CM-MAC=10:e1:77:71:01:f5;CMTS-MAC=00:01:5c:b4:c8:56;CM-QOS=1.1;CM-VE

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The Many
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hansenazThe Many
asked in SB8200
Another intermittent SB8200 internet drop case

My 14mo old SB8200 has started dropping the internet a couple times a day in the past week. I see in other posts that I should follow a procedure to check the cable power levels, to make sure that part is OK. First step is to do a direct ethernet connection to my laptop. I don’t have an ethernet port or an ethernet-USB adapter. Is it essential? Can it be done wirelessly? Probably unrelated, but my ISP (Cox) is in the middle of “upgrading” and say they will take me offline today for a few hours. Might there related “fooling around” be causing my recent connection problems?

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plemans
Juggernaut
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The Many
SantikiThe Many
asked in SB8200
sb8200 issues

My SB8200 stopped working yesterday, the only light on is the power light, solid green, reset button does nothing. Is there a number to call? It is still under warranty until the end of March. [edit: removed image with personal information]

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Wi-Fi Warriors
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The Many
dcarnaghiThe Many
asked in SB8200
Wrong default gateway address on SB 8200

I just recently purchased a SB8200v3 and am already having an issue with it. After contacting my ISP to have it added to my account I was able to get network activity, but the first octet of my default gateway is 24 instead of my ISP’s 192. I need to plug in directly to my modem and manually change the default gateway in order to log into it locally. Does anyone have any thoughts how to get this issue sorted out if the ISP says it’s an issue I should take up with the manufacturer? Not being able to get my home network back up and running is a slight inconvenience.

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Wi-Fi Warriors
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DsmevolutionThe Many
asked in SB8200
SB8200 Firmware Update

I need a firmware update file for my SB8200. I know it was mentioned to my ISP’s support line and they refused stating that they are not allowed to connect to customer owned modems and process updates. At this point, I cannot update my modem and i’m having connection issues with reset connects and VPN drops which are impacting my ability to do my job. Can anything be done to get me an update file, please?

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Wi-Fi Warriors
franklin124
The Many
franklin124
posted in SB8200
[new] use for SB8200 2nd eth/en port

Sharing the results of 4 Astound “technician” visits w/r/t loss of 75% download speed , a broken Hitron modem, and a working useless Hitron replacement. Note that the Crackerjack Box Hitron modems rented from Astound come with a fixed subnet in their “default” ipAddress which is the equivalent to getting a ‘locked’ cell phone. It locks you into that subnet if you add the modem first, but ruins your LAN speeds and address-sifting if you add the modem to an already-existing LAN which uses a different subnet. Of course, deploying no ‘forward’-compatibility, the firmware web page does not allow the customer/admin to modify that ipAddress. That and any other “admin” functionality” does not even exist on their page. It’s called ‘authoritarian’, ant-user, and chiefly, “lame”. Naturally, with so many “default” user/pwd pairs floating around, none worked, esp. because there was no connection made. That presents issues for those avoiding the security and slow-down associated with ALL WoiFi/wirel

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franklin124
The Many
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BrettpackThe Many
asked in SB8200
no power to my surboard. why?

I can’t get my surfboard to power up

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Wi-Fi Warriors
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The Many
ZerimarasThe Many
asked in SB8200
4.5-year-old SB 8200 - intermittent issue and suggestion to buy new product.

Howdy folks, I have an SB 8200 that has been working great for 4 years, but over the past 6 months or so it has been dropping connection semi-regularly. After Googling that the unit should last 2 - 4 years I figured mine must be at the end of its lifecycle. If that is true, what should I replace it with? It still seems to be rated highly. I'm not very IT sophisticated although my whole house is smart tech equipped. I use Cox Coaxial gig speed for my internet. Any suggestions for replacement make and model would be appreciated. Thx

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needSB8200helpThe Many
asked in SB8200
SB8200 will not connect to my pc?

At the request of my ISP WOW I am attempting to connect a new Arris SB8200. After connecting the power to the modem I received a single green power light on the front of unit. I pushed and held the tiny reset button in the back for 15 seconds although I didn’t feel any spring to it? I connected the ethernet cable from my Windows 10 PC.Opened my browser with the 192.168.100.1 address to test the ethernet connection and it would not connect? rebooted PC still no connect to 192.168.100.1. This PC connection is known good I am using it successfully to post this with my old Arris SB6141. Its the simplest ethernet to PC single connection no router or any other devices. No flashing lights on the front of the SB8200 modem after the reset either? I have not moved the coax cable over to the new SB8200 yet since I can’t login using Admin to check the signal strengths. Very impressed with my old Arris 6141 and the WOW customer service said your forum was the best and usually gets to the bottom of

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Wi-Fi Warriors
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The Many
jhallett27The Many
asked in SB8200
DOCSIS 3.0 green light vs DOCSIS 3.1 signal on SB8200

I just purchased a SURFboard 8200 v3. The Receive and Send lights both show as green, indicating DOCSIS 3.0 is being received. My ISP is Spectrum, and their local office stated that they have only been using DOCSIS 3.1 in my state for several years. I have seen some other answers regarding this issue related to “provisioning”, and that the issue lies with the ISP, not the equipment. I’m unsure of the proper question to ask the ISP. What is provisioning and what do I need to ask the ISP to do to try and address this issue?

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waldoThe Many
asked in SB8200
Xfinity Bricked My SB8200

First post, hope I’m putting this in the right place. TLDR: Xfinity activation bricked a previously activated SB8200, and their tech support told me to contact Arris for a "configuration file". **** I've used a self-owned SB8200 with my Xfinity plan for 3 years, but after upgrading to the gigabit plan, Xfinity began sending me email notices that my equipment isn't capable of fully utilizing my plan. So, I bought a recommended Arris S33, swapped out the SB8200, and had the S33 activated and running in minutes. I put the SB8200 back in a box for storage, feeling it would be handy to keep around if the S33 failed in the future. Although the S33 performs just as well, if not better, it is much hotter than the SB8200. So much so, that I decided to return it to Amazon and reinstall the SB8200. (I don't like hot electronics, but that's just me....) BIG MISTAKE..... Upon swapping the S33 out for the old SB8200, I found that Xfinity's system wasn't providing any internet service (even though th

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The Many
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needSB8200helpThe Many
asked in SB8200
SB8200 Walled Garden error during provisioning

Was advised by WOW I needed a new DOCSIS 3.1 modem so I bought an Arris SB8200 used from Ebay. Attempted to provision with WOW and tech said system was receiving a “walled garden” error? First thing I did was push the reset button in the back of the SB8200 waiting about 20 seconds until the two blue lights and one red light briefly lit before blinking out. When I released the reset pin after the reset the power light came on but the blue and red network LED’s did not blink? Modem should have been reset at this point so I attempted to verify by hooking up a single Ethernet cable to the top ethernet port of the SB8200 leaving my working ethernet connection on the PC. (no other routers or devices to cause issues) typing 192.168.100.1 in two different browsers and modem failed to connect? Normally you could at least reach the gateway of an SB8200 and enter Admin userid with the last 8 digits of the serial number. This way you can view the signal strength and channel information. So this mi

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rvhughes1The Many
asked in SB8200
SB8200v3 Only Connects to PC after xFinity outage

Have had my SB8200 connected to xFinity cable service for over a year with no issues. 2 days ago we experienced a 4 hour xFinity outage, after which my PC is the only device that the modem will connect to the internet with. My mesh WiFi system won’t connect to the internet, nor any other ethernet devices such as my Apple TV. I have rebooted the modem several times and eventually did a factory reset and registered it again with xFinity. Speedtest on my PC gives me 590 mps download, paying for 500. The problem persists. Does anyone have an idea of why my PC is the only device it will connect to the internet with? Any suggestions on correcting this issue? Much appreciated. rvhughes1

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plemans
Juggernaut
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The Many
Easyrider4120The Many
asked in SB8200
Arris SB8200 power on failure

Purchased April 2023 so 16/17 months old and total failure while not home….it was plugged into a surge protector and no other devices in the home were damaged so I don’t think it was from a power surge…..no lights on the arris and have done all the smart things that arris would say….is the power cable inserted? Yes…did you try it from another outlet? Yes Will arris cover this under warranty or is it just that this was a bit of a lemon and most arris’s would last much longer? l did swap out an old Motorola modem that still works so wasn’t dead in the water (after coordinating with ISP) I do want to have another spare on hand wondering if I should avoid arris or not

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plemans
Juggernaut
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The Many
kwatkins1906The Many
asked in SB8200
firmware update sb8200 spectrum

I spoke with Spectrum to send me a firmware update and they said that they can’t send updates to third parties so how do I update my firmware

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Wi-Fi Warriors

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