SB8200

The top port does not work according to a comcast tech. The bottom port does work. We used the top port for 6-7 months when internet quit. The comcast tech tested the modem and said the top port was not responding. I called Arris tech support to see about getting a replacement modem and was told that this model only one port works. Sounds dubious. Any responses?

Does the SB8200v2 still support Link Aggregation? Just replaced a VERY old SB8200 hardware v4 with a new SB8200 and its a SB8200v2 hardware version 1. The firmware that came with it is TB01.01.001.05_012122_212.0A Am I out of luck or just waiting for my ISP to upgrade it to the latest (2.X) firmware.

Is there anyway I can change the brightness on the front panel LED’s? They light up my whole room at night.

ref: Upstream Light Not Blue just whitish color or no colorHi,  Have searched the Internet high and low  looking for a solution to this problem only to find vagaries or possible blame on the user, or the cables.Just to mention, that 3 days ago all internet coaxial ethernet cables from the pedestal to the SB8200 as well as the full operating signals, have been checked one by one by an Xfinity technician and found them all in excellent working order.Also as suggested by some users, or instructions on faq performed a reset, to no avail.Have performed a number of restarts following Xfinity’s instructions as well as those found in the manual or this site to no avail.   Unless I am able to find a solution to the problem of Upstream light not blue after completing a restart, will have to return the modem to the place it was bought from since I am still within the limits of days to return an Item.Please help me find a working solution as

Dear Sir/Ma’am, Please kindly help to register my Modem and have Warranty in place. Please kindly let me know what information do i need to provide. Thank you. Sincerely, Mr. B. Diaz

I am so perplexed!!! All of a sudden I am  unable to connect to all my devices at home. I contacted my Spectrum service provider and they advised that I needed to contact the modem company. I know that there’s no issue with my internet because many of my devices are still in use, but my macbook, xboxes and Roku TV which all worked prior to 2 days ago are no longer connecting to the internet. We’ve done factory resets and disconnections and restarts of these devices and nothing works. Can someone suggest what the problem may be.

When I originally set up my home network using a 10.0.0.# IP scheme I swear I could access the SB8200 web browser interface by using 192.168.100 from a computer on my home network with a 10.0.0.# IP address.  I know it worked then, because I know I reset the modem’s default admin password.  Now I can successfully ping the SB8200 192.168.100.1 IP address, but trying to access the browser interface eventually times out the browser.  The router is a Linksys MR7500 and the ISP is Comcast / XFINITY.  I have also tried a default reset on the modem and I still cannot access the modem via the web browser interface.Any ideas why I can’t access the modem’s web interface?  Do I need to set up special routing on my Lynksys router?  Any help would be appreciated.

The time is off 1 hour on my SB8200. Is there a way to set the time manually?

Have reset the router and had Cox cable confirm Old netgear router will work and pc ethernet connected to modem connect to internet but When attempting to set up Eero gateway signalsno internet 

I’m seeing comments about white power light and connection light, but is a white send or upload light an issue?  download is blue upload and power are white - no internet

Hi, I am not sure if my ISP is pushing the latest software version to my SB 8200. How do I confirm if I have the latest version? I see listed on the admin page the following hardware version 6software version ab01.01.009.51_080720_183.0A.NSHis that the latest?

I'm only getting 400 or 500 speeds and 150  the downloads are 14 on laptop and 25 to 30 on xbox

I recently switched to Voiply internet phone service and I am having issues with them registering my adapter. When I did chat with them, they said I need to disable my SIP ALG. When I did research on how to disable on a SB8200 I read it should be at advanced settings. But when I go to advance settings the only option I see is to enable Link Aggregation Configuration (it is currently disabled). I am at a lost on how to disable. Any ideas would be appreciated.

I just got rid of a 9 year old Motorola/Arris modem where the bottom light would “flicker” when the internet was working. I installed a new Arris SB8200 but I noticed the bottom “globe” light does not flicker; it just stays on steady. Is this normal?

Hi everyone,After several hours on the phone with my ISP, they told me several times that everything on their end is fine, that I need to contact the modem manufacturer for further guidance. My internet plan is 100 Mbps download/ 10 Mbps upload.  For several months now my download speed has been hovering around roughly 10, but my upload has been solid at 10+.  If I reboot the modem the download speed will jump to 15 or so but only for 1-2 minutes, then back down into single digits. I have this SB8200 modem and a Netgear WNDR4500 router; these speeds are consistent across all my devices, both wi-fi and hard-wired into the router.For the life of me, I can’t connect to the internet when plugged straight into my modem, but I am able to manually set my IP (like the work around sticky says) and obtain my bonded channel status.  It looks like 5 of them have a SNR/MER below the levels recommended in the FAQ (one of them is 0!), and 6 channels

SB8200 D3.1 SN **************how to temporarily turn off 5.0 so I can add Arlo camera. Then turn 5.0 back on

I have a new arris SB8200 and xfinity. I attempted activating through the xfinity app but it said it could not connect to device. The power, send, and internet lights were solid green and receive light was solid blue. I got on xfinity chat and they had me do a bunch of stuff but always ended with same configuration of lights. When plugging in router, was showing no internet. I tried going to the IP address on my laptop but no luck. My laptop does not have an Ethernet port so I don’t have the option to plug directly into modem. When I went back to my old modem, everything worked fine. Trying to figure out next steps before I return this modem. 

I need help, I bought the arris sb8200 cable modem. C spire fiber optic will be installed soon. Did I buy the wrong product? If so what do I need to connect to fiber from c spire? 

Suddenly surfboard 8200 receive light blinking other two not lit at all. no internet outage in our area, have reset modem a few times. is 3 1/2 years it’s life expectancy. 

My SB8200 will not power up. The 4 lights on the back at the ethernet ports come on. None of the lights on the front work. I have tried moving to multiple different outlets and there are no changes. 

Last night our modem suddenly stopped working. The modem has sat near the coax cable at a computer desk. We haven’t moved it in almost a year. I spent 2 hours on the phone with our provider troubleshooting and running diagnostics. Xfinity told me that we’ll need to buy a new modem. This is frustrating because I bought the Arris SB8200 around this time last year and had an xfinity technician come out and confirm the configuration.  I assumed these modems should las for more than a year. What are we supposed to do if the provider is telling us the modem is broken? I made the investment in the Arris modem so that I wouldn’t waste money renting one from our service provider. Now we’re worried that we don’t have a choice and don’t want to waste more money purchasing another modem. What do you suggest we do?

I am a tad green with this topic.  What is the fix to the message on my MacBook Pro when I try to connect via an ethernet cable that says, “Display Ethernet has a self-assigned IP address and will not be able to connect to the Internet.”  I am able to connect all my devices (2 computers, 2 iPads, 2 iPhones, to the wifi Eero Pro which is connect to the Arris sb8200, yet I am not able to connect via ethernet cable. any help would be greatly appreciated. TY

Hello, I have an SB8200 and I’m on the xfinity “Performance Pro Internet Plan” (Download speeds: up to 400 Mbps / Upload speeds: up to 100 Mbps). Google Wifi puck connects to the modem. Linksys se3008v2 switch connects to the puck. All other devices are either wired to the switch or connect to the puck by wifi. I’ve only been able to pull ~10Mbps down on my connection. Tested this through: - The Google Wifi puck’s built in speed testing. - Internet speed test on a desktop hardwired to the switch - An Open Speedtest running on a hardwired NAS hit from my phone while wireless is turned off. Had several troubleshooting calls with comcast. They tried all the standard restarts and re-provisioning. Sent out a technician who hooked their diagnostic device directly into the modem line. They were able to pull a norma

I have had to call my ISP several times about not getting the speeds I am paying for. We pay for 1200 mb/s. We tested the signals and the speed is coming in about 1980 mb/s through the cable but then drops to the low 800s after going through my sb8200 modem before it even hits my router. I tried turning on LAG but didn’t seem to change anything. Modem Info Below:Standard Specification Compliant Docsis 3.1 Hardware Version 6 Software Version AB01.02.053.05_051921_193.0A.NSH

I have Comcast xfinity internet service. I want to upgrade my sb6190 modem to the sb8200 but it is only available in white. Is the cm8200 (which is available in black) compatible and interchangeable with the sb8200. I’ve read some Amazon reviews who said they simply identify their cm8200 as an sb8200 when registering the modem and they have no issues. Will it work and are there any downsides to choosing the cm8200 for use on Comcast/xfinity?