SB8200

I am trying to setup my ARRIS modem MODEL SB8200. Xfinity has done everything on their end and can confirm there is a strong signal, however I am not seeing the modem in my network to login. Please advise...

My sb8200 has 2 internet ports. The #1 connects laptop to modem. It flashes orange. 2 connects my router to the modem. It flashes green. Shouldn’t both be flashing green?

I had an incompetent Xfinity tech tell me srros needs to reconfigure my modem cause it’s in bridge mode..After all that I realized he didn’t have me hook up my router and he was wondering why my wi fi wasn’t showing up anywhere..

does anyone know if Arris has pushed out any security updates for all their modems as per the recent FBI announcement that deals with Chinese hackers targeting personal modems and installing virus / bots ? I have an SB8200 Surfboard cable modem i am concerned about

The power light keeps blinking and non of the other lights are no. How can I fix it? I purchased the unit on 11/28/2023. 

I cant access my routers web manager every way I try to get it google just fails and says ERR_CONNECTION_TIMED_OUT

Not sure if this is an isp issue, a modem issue, or an issue w my signal levels.im sure my isp - optimum - will blame me for not using their equipment,it seems like its could be an issue w my cable modem? Ive seen about 4-6 posts with seemingly similar issues. I also have the issue where you can not access the modem gui management page.i’ve been at the same location for 7yrs, had optimum residential cable, business cable, and now switched back to residential service for better price and 1gig service. This issue is new since replacing my old docsis 3.0 sb cable modem + router to the sb8200 + 2 different routers that both have the same issue.equipment is this - sb8200 -> router/firewall → switch → ap/ethernet.at least once a day my router loses the internet connection for about 10m. all the lights on the modem indicate that it is connected as normal. I suspect this is related to the isp dynamic address updatingif i p

I just updated from an old SB6121 to an SB8200. The internet is way slower from before. I checked the status page and it looks like all my power ratings are out of the norms. Any way I can correct this?  

This is the first time I’m using Arris products and I love them! is there anything more under the hood other than going through the app? 

had a zfinity technician rule out the splitter, coax cable, and ethernet cable a possible cause, down to being the modem itself causing the problem. what could be the reason for this failure. also i am hard wired to it (no router in between). could it be a hardware failure on the inside of the pcb board? if so which component that i may de sauder and re sauder.

can I port forward with a sb8200 router? if so how?

Just bought a brand new sb8200. Came with 2 Ethernet ports but when I try to use both only 1 works?? 

My provider Mediacom has provisioned my new SB8200 but it has only the 1 blue download light lit, shouldnt all lights be on??  Also I can not connect to my netgear gigabit switch ….. 

I am trying to connect my T-mobile cell spot and it says I need to open Ports 500, 123 & 4500. How do i do this? I have the Arris SB8200.

My provider uses Xfinity and they say that the modem has issues on their end they say it is connecting and then drops it over and over...the modem is pretty much brand new...I refuse to believe it is unable to push the small town providers 1 gig speeds I know it's not the WiFi router cuz Ethernet from modem straight to my laptop is still not connecting...anyone know what my issue may be? And yes it's been provisioned to the provider this issue just started tonight

How can i enable Bridge Mode on my SB8200 on my PC and not my phone? I do not have access to wifi at the moment and the mobile app has no way to connect to the modem My issue is that my router is not getting internet from my modem - but ive confirmed that the modem is getting internet, as I am hardwired to it and connected to my ISP, Cox

I have sb8200 with COX in Phoenix, and I have exactly same thing happening, started about 2 month ago and it would drop to 30 mbps every week or so, cox came out checked the line and said it was good.

My modem will not provide internet access to either of the two Wi-Fi routers I have tried. The lan cable works with my ps5 so I know internet is coming to the modem. I have netgear routers. I have reset all of them and turned off and turned on all of them. Any other ideas?

I need to set my password/username for the sb8200 modem. I do not have original password/username, and also did a factory reset. But do not know how to change it. Please help. Thanks.

I do not understand this modem and am looking for the user manual. Where is it? 

I have everything set up and connected but I can’t find my wifi on the wifi part on my phone to connect 

  I just recently purchased the SB8200 because the modem that i was renting through the provider would never let me get more than 350mbps download and 55 upload and that's on a good day, when im paying for 1GB service.   I live in a town that is fairly small and almost an hour from any bigger cities. When I started my plan through them they put new cable all the way out to the power line. So I know there's no problems with the line at least that has been found.     I am also renting EERO devices for an additional 16$ a month just so i can manage who is on my network and set time limits for the kiddos otherwise I would not be able to receive/modify any of my network settings right?. I feel as if my provider is lying to me that 1GB service is supported in my area.   Every tech that has came out makes up a new excuse each time and they always say that the speed looks good on there end but it could be my devices or some other excuse. The only reason th

Hello, my SB8200 is dropping intermittently for about a few minutes and then reconnects. I had this same issue last year where I had to get a replacement SB8200. Here is my event log and upstream/downstream. Any ideas about what could be causing the issue? I have sent a ticket to my ISP, but wondering if this is a reoccurring Arris issue? Downstream Bonded Channels Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables 17 Locked QAM256 663000000 Hz 2.7 dBmV 41.7 dB 2 0 1 Locked QAM256 567000000 Hz 3.0 dBmV

My new SB8200, but its software/firmware says it is a SB6183 DOCSIS 3.0.  What is going on!  Would I replace it?

URL is being blocked