SB8200

Testing the SB200 when only power and ethernet connected.  Unit reboots after 10 minutes.  Is this normal behavior when no coxial is connected?  This is my second purchased one.  Many thanks.

Ch 2 showing Not locked, all levels look good.Had issues with ISP, replaced the line from the drop and tap, and had to call the fcc to actually have them come out and fix the node, just want to make sure everything looks good. currently the line has 2 splitters, just wondering if the node adjustment could have affected the configuration with my line.

We had a brief power outage to our home over night. When trying to connect to the internet in the morning, we had no connection, or intermittent connections. I rebooted the SP8200 and also did a reset. I contacted our provider, Breezeline, who said there were no outages in the area. They trying to reset the connect from their end twice. The connection would come back briefly and then fail. Finally the provider eventually said that it was the modem, and that I had to contact the manufacturer, Arris, to determine the problem. This is where we stand at the moment.

I have an Arris SB8200 and if I wire my Xbox directly to my modem my router stops receiving internet so I cannot get wifi. I've done a reset and unplugged everything in every combination i can. When I get my router to work as soon as I turn on my Xbox my router disconnects and I have to reboot everything. I cannot get both to work at the same time while connected to the modem. Does anyone have ideas or solutions? I just would prefer to have my Xbox wired to my modem rather than through my router if possible. It does work if I hook it up through the router my connection just isn't as good.

Security search revealed vulnerability due to open port -- how do I close it?

I just purchased an ARRIS SB8200 Surf Board modem and having trouble activating.  To activate, I have two choices….Scan the QR Code or do it manually.  There is no QR Code and when I try manually...it does not recognize my wi-fi password.Is there a way to get the QR Code for the SB8200? 

Need instructions on sb 8200

I just replaced the Xfinity equipment with my own ARRIS SB8200 and a Ubiquity Dream Machine SE router that feeds data lines wired in my home, with 5 end point mesh devices. No problem transitioning all my end use equipment over to one of the 4 networks I set up in the Dream Machine WITH ONE EXCEPTION - SONOS. The more I read, and I am not a techie, I see that there are incompatibility issues between Ubiquity and Sonos, so my desired solution is to connect a conventional wireless router to the second ethernet port on my SB8200, creating a wireless network apart from going through Ubiquity, totally dedicated to Sonos. Will this work? Seems it should if the second ethernet port has the same functionality as the first. Thanks in advance for any help here!

We’ve used this modem for years with no issues like this. The buttons are always green. Today, we stopped getting internet service. The receiving light is blue, and the internet company is sending a tech, which is a huge inconvenience. Do I need to replace the modem? Thanks. 

I'm having connectivity issues. I think there's some storm damage to my came lines. Because of that, I've been logging into my SB8200 often to look at the event log. I've noticed that I can't log in when the send LED is flashing. My PC just says it can't resolve the IP address.Is this normal? I can sign into it once the send LED is solid, but it doesn't make sense to me for the connection to the ISP to have any affect on the ability of my browser to find 192.168.100.1

Surfboard identifies my modem as a Motorola sb 6121 and my modem is an Arris sb8200. If that is wrong how can I trust anything else the app displays? 

My wifi has been offline for 4 days. Xfinity reporter that on their end the internet system is on and successfully connected. They suggested to troubleshoot my surfboard. I rebooted several times - no luck. Should I factory reset? See title for status lights on my modem. 

How is this resolved?  Happens with Win7, Win10 and Win11.  Browsers include Chrome, Firefox, Brave, MS Edge.

Xfinity sent me an email saying that my SB8200 is not able to deliver the upgraded 800 mbps speed that I’m being offered.    Is that true and if so, any recommendations of the best value for money for a modem that DOES full use of the higher speeds? Thanks in advance for your helpJP

We have a new modem (SB8200) and intended to use our existing Netgear router they do not want to talk. Any advice?  Do we have to have an ARRIS router as well?  That does not make sense when my prior modem was not Netgear. 

Hello! I have an SB8200 Surfboard modem that seems to be non functional. I can connect to my wifi but I can't connect to the internet.The light are (top to bottom) Yellow, Blue, Yellow, Yellow, and the rest are offI'm pretty sure my warranty is still active but when I checked online it says it can't find the device. I've double and triple checked the serial number and it's exactly what it says on the modem. Every number. I'd even show the picture if It was safe to share the serial number but I'm not sure. I've tried adding spaces between the letters, I've tried using every other code on the modem even if it isn't labeled as the serial number, I've tried adding S/M: the the beginning of the number, I've tried adding zeros, removing numbers, putting letters in upper or lowercase, nothing has worked. This is the main reason I made this post 

Good morning, Have a brand new SB8200 that's never been opened but I purchased it in 2019 and its just been in storage. Want to replace the current SB6183 I am using with Charter Spectrum. I need to determine the revision or version number to make sure its at minimum version 2 per Charters approved modem list. I have checked on the box and the modem itself but there is no version number listed. Is there a way to determine the version number from the s/n, etc? I am pretty sure it will be fine as the 6183 I have been using has been working fine on the acct since 2014 but just want to be sure.Thanks

A little background first - my COX account is for 500 Mbps, and with the Gateway speed tests on the COX website were somewhat greater than 500 Mbps.  However, we experienced daily issues with the WiFi, having to reboot the Gateway at least once almost every day.  Our laptops and other devices would lose connection frequently. So, I recently replaced my COX Panoramic Gateway with an Arris SB8200 cable modem connecting to a TP-Link Deco X55 (AX3000) mesh system (3 nodes).  The setup was easy and our devices don't seem to have any issues connecting.  However, download speed tests (WiFi) are now showing 80 Mbps (upload ~11 Mbps).  A wired test with my laptop connected directly to a Deco node showed only a slightly higher download speed of 85 Mbps.According to COX my modem was provisioned properly and it all looks good on their end. So I sent a detailed report to TP-Link support, including all information they requested (various speed tests, network topology, firmwar

This modem has been working well for me.  I want to login to the modem AND I CANNOT ACCOMPLISH THIS.  My tech skill level is high.  I have spent hours doing Google searches on how to do the login, including using different combinations for usernames and passwords, including using the last 8 digits of the serial number for the password, and attaching my laptop directly to the modem, AND NOTHING HAS WORKED.  Arris needs to address this issue, as I found many frustrated people posting online about having the same problem with this modem.  Thanks.

I just bought a new SB8200 to replace my DOCSIS 3.0 Modem and I don’t think what the status window is showing me is what I should be seeing. The downstream bonded channels are all QAM256, while the upstream channels are SC-QAM. On the front of the modem, the second light from the top is blue and the third is green.I was on the phone with Xfinity for almost an hour since they had trouble connecting to and they were finally able to provision it. When I asked them about what I was seeing on the status screen they told me it’s that way since it’s a customer-supplied modem, I don’t buy that answer.Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables 29 Locked QAM256

Currently connected via wireless to Arris Surfboard SB8200. I want to connect directly to modem via network cable but when I do that I get the message: Status-Connected; Ethernet has a self assigned IP address and will not be able to connect to the internet. Is there a setting I can change in the Modem to allow connectivity ?

A little background first - my COX account is for 500 Mbps, and with theGateway speed tests on the COX website were somewhat greater than 500 Mbps.  However, we experienced daily issues with the WiFi, having to reboot theGateway at least once almost every day.  Our laptops and other deviceswould lose connection fairly frequently.So, I recently replaced my COX Panoramic Gateway with an Arris SB8200cable modem connecting to a TP-Link Deco X55 (AX3000) mesh system (3 nodes).  The setup was easy and our devices don't seem to have any issues connecting.However, download speed tests are now showing 80 Mbps (upload ~10 Mbps).  A wired test with my laptop connected directly to a Deco node showed onlya slightly higher download speed of 85 Mbps.According to COX my modem was provisioned properly and it all looks good on their end.So I sent a detailed report to TP-Link support, including allinformation they request

Just installed SB8200 and activated port 1 through Cox.  Setup was smooth.  I also have Verizon Home 5G (Cox is unreliable) running with no conflict.  I know how to set pass thru for the 5G modem but need to know how to add the IP address to port 2 on the cable modem.  Cox refused to help.

I am currently getting several dropouts the past few days. I contacted Cox customer service and they stated that Arris has a firmware update for the Sb8200. I went to the site and found nothing. Can anyone please help me with this. Thanks in advanceMax

My ISP is Comcast/xfinity. I am using ARRIS Surfboard SB8200 DOCSIS 3.1  bridge mode. I have a  MikroTik RB2011UiAS-RM Routerboard Rackmount 5xLAN 5xGbit LAN 1xSFP connected to ARRIS Surfboard SB8200 DOCSIS 3.1.  Here is my issue the ARRIS Surfboard SB8200 is a Gig-e port. The RB2011UiAS will not connect to RB2011UiAS as a 1 Gig port. if I hard set the RB2011UiAS to 100 meg both units will connect, but dhcp will not work or pass traffic. Any suggestions.