Modems

I got new modem but unable to connect because I don’t have default id and password 

I have an Airport Extreme which evidently automatically takes the 192.168.100.1 IP address so I am unable to connect to my SB8200.  Any suggestions? 

On the configuration page there used to be a button “Restart Cable Modem”. This button has disappeared. Who changed the firmware and how can I get the button back?(My ISP denies that they have changed the firmware on the modem that I own)EDIT: When I remove the coax cable and restart the modem, the reset and restart buttons are there! However, as soon as I put back the cable the buttons disappears 🙄.How can I keep the buttons with the coax cable connected?Several years ago, the buttons were there even with the cable connected..

xfinity could not activate the modem. they could see the modem and run tests but could not activate it. Xfinity documents the modem as compatible.The modem’s front light was solid blue. The modem was very hot.My old modem still works so I don’t believe there is a problem with cables.Shall I exchange it? It was purchased from amazon.

Doesn’t DHCP a private address.

I have SB6183 and would like to add a 2.4 ghz wifi option so that I can have both 5 and 2.4 but we are not able to access an admin page. We think the firmware might need to be updated too.  can someone please guide me step by step on how to add a 2.4 ghz wifi option? We use google mesh as well. thank you so much in advance!

SB8200 was in service since August 2024 and under warranty.In December 2024, “No Internet” status from all home computers.All status lights (Power, Receive, Send, Internet) solid green, none flashingComputer directly connected to the modem also reports “No Internet”.Xfinity reports modem is fully addressable from their end (but lights never flash)Approximately 3 hours Xfinity phone support and over a dozen modem/router reboots performedIPCONFIG /RELEASE, IPCONFIG /RENEW performed, PING local network addresses successful, PING internet unsuccessfulNeed process to return modem under warranty

How can I connect my modem?

The power went out and when the modem came back on it only flashes green. I pulled the power out for 30 seconds but no change. I tried doing the reset button while I was flashing and still only flashing green. Not sure what else I can do?

I've unplugged every cable, replugged, waited 5 minutes while everything was unplugged, waited 5 minutes after modem had solid light before powering the router, attempted powering both router and modem at the same time, tried timing them to be on at the same time, done a soft reset, and my modem still won't connect to wifi. Its done this before multiple times, but till now ive been able to resolve it and see it finally connect, but this time it will not. My asus router isn't old and it says theres a problem at the modem. My internet is fine. This only happens if the power goes out and it tries to reset.

Hello, I have a small mesh wifi network comprised of two W12’s (one of which is operating as router connected to the SB8200 via ethernet) and the other which acts a node. My GF just recently got a stay at home job which she got a desktop for and it needs to be connected via ethernet.  When I went to connect the ethernet into the other port initially it wouldn't connect to the desktop. So I rebooted the system to which the ethernet worked but the router wouldn't connect. After hours of trouble shooting I found myself here.  Any recommendation as to how I can hard wire a device to my modem while still allowing my wifi to work? 

Hi, I am trying to set up parental controls. I have a SB8200. I downloaded Surfboard Central, but don’t see the option to create users or set up rules to manage their screen time. Thanks for any help!

So every single light is showing blue except the power and online light. The light is kind of white but not on if that makes sense. Everything else is working fine other than the fact I can’t connect to the internet, it’s not even showing up anymore. I’ve tried resetting it and turning it off and back on again but nothing seems to help. What’s wrong with it?

My modem won’t stop making a ringing sound when on. This started around a year after first using the modem.

I never recieved a tracking number or confirmation of a purchase made over a week ago. Any idea who to contact?

The first light is solid but the second is just flashing. Did the ethernet to the laptop and still no internet, can't even connect to the modem itself. 

I have an office with about 5-7 computers needing access to internet at one time.  The speed I am going to be purchasing is the 150mb/100mb and I was looking at the sb6183, but wasn’t sure if there was a better modem for the setup I have. Thanks!

I need to set up my name for my Internet and password 

I’m replacing my Motorola MG7500 with a SB33v2 which will service my TPLink Archer router.  I think I’ve established service to Xfinity, but can’t seem to raise the router in any configuration -- my LAN connection shows a router through Xfinity which makes me believe the router on my side is being circumvented.I am getting traffic from the internet back to my laptop in the below configurations:cable → modem→ router→ switch->laptopcable → modem → router→ laptop.Do I need to reset anything on the modem proper?Is there some guidance on troubleshooting?Is there an intermediate step available to connect to router directly?   Thank you for any support you can offer. Sincerely,CW 

I don’t have a smartphone and the required app download to activate it. How to get it to get wifi?

Purchased this modem 4 months ago and it worked perfectly until “I moved it on the shelf.”  Seemed to go into a standby mode - has power but does not receive internet signal or reset when I tried to do that.  Called cable company to check it out, tech said it’s a modem problem and recommended I purchase an SB6190 DOCSIS 3.0 Cable Modem (which I just did).  My question ~ will ARRIS allow me to return it, and refund me for this defective modem? (I sure hope so.)  Not having internet, because of this defective modem, has put me in a difficult position as I work two days at the office, and three days from home.  

I just bought model SB6190 but when I was trying to activate it ; it is not supported by surfboard central app . 

Sb8200 second port not working?

Has anyone had issues getting new modems to work on cox.  I have tried the G34 and SBG10 working with Cox for days ~ 18 hours on the phone finally being told modem not compatible. i have Cox complete care, technician said there were no issues with cable. It was after this that I have not been able to login 192.168.0.1 with my 2006 SBG6580. which Cox says is outdated. yes cleared cache cookies used MAC , Windows,  Chrome, Safari. ???  Thanks 

The manual instructs me to open a browser & enter an IP address to log in to change the name / password for the modem.  When I do so, I get an error message saying the site can’t be reached.  I’ve tried on 3 different browsers and I get the same error message.  I have the SB8300.