SB8200

What is the difference between V2 and V3 How can I tell what my SB8200 is

Hi,  i have a surfboard SB8200 modem. Just today, it started to behave funny, would drop internet connections frequently. I checked with Comcast, everything is fine in my area. Upon rebooting modem (unplug the power cord), I would get Internet for 10 mins before it goes out again.  logging into the arris status page, I see Upstream bonded channels sometimes doesn’t existing and there’s only one downstream bonded channel too, which doesn’t seem right at all considering I have 300mbps service with Comcast.  I already checked the warranty status and luckily I’m in warranty. The SN is 21T5J1699603171. Can you progress an RMA replacement for me asap as Internet is down for my whole house. 

I have had my internet and Arris installed for a grand total of 7 days and I am infuriated. The router reboots randomly. Had Xfinity out, they say Arris is not great and it's not their signals. When it comes back up, it is so slow. I ran a speed test, it didn't complete the test. I see a red error message from Ookla. "UPLOAD TEST ERROR" A socket error  occurred during the upload test. A firewall could be blocking the connection or the server might be having issues." I am not a network tech and have no idea where/how to start finding network logs, etc.  

Zito Media (my ISP) sent out a tech because how how frequently the internet has been dropping out. But even after running a new line into the house the problem prevails. They told me it’s a problem with the modem. I have only had this modem for 9 months but it was refurbished and now just barely out of warranty of course. Is there any fix or can I get any sort of credit/discount on a replacement modem?

I have an SB8200 and pay for 1 Gig download from Xfinity.. I get a lot less than that and when I speak with Xfinity they just say its a modem issue with the SB8200. Everything looks fine with the modem. Downstream Bonded Channels are all within range - the Upstream Bonded Channels are a little low but not huge. How do I run a diagnostic test on the SB8200. This is the second SB82000 in 4 years and I don’t want to buy a third if they don’t last much beyond the warranty. Having said that, I don’t trust Xfinity 

I have been trying to login to reset password.  Reset modem and tried the admin and password, still get error message that they are invalid.  What do I do now?  

Can't find my password 

Can’t access web manager for SB2800 (bought 8-21-2024, setup & running), tried going straight from modem to laptop, tried resetting modem, tried turning off firewall, tried both Edge and Firefox, no go, gives me a timeout or can’t reach this page.

SB8200. Modem stopped working, wont connect. have tested all cables. They’re fine. have hard reset modem multiple times and have attempted to login to Arris using IP, but all default usernames / PW’s do not work. I’ve wiped history and cache and used multiple alternative browsers. I’ve tried admin & last 8 of S/N. admin & pw. cusadmin & pw. I’ve tried all variations with blank pw so just clicking enter etc. Nothing works! Unable to login to see modem and try to resolve issue. Also this “live chat” isn’t a LIVE CHAT at all. Terrible “customer service..”

So about once a day now out SB8200 modem loses all lights on the front, not even the power light is on.  We unplug and plug it back into the wall outlet and it refreshes, but sometimes only for a few hours, sometimes for a day.We did do a full reset 2 days ago to see if that would fix the issues, but it is still losing all 4 lights in the front. Though the network cable lights in the back are still on.Any thoughts on what is going on with this unit?

I have a SB8200 and have tried:admin & PW.admin & last 8 of S/N.cusadmin & password.cusadmin & last 8.Also all variations with no pw just enter (“blank”).Nothing works!

I bought the SB8200 around March or so and have connected it without it actually providing the internet so I had to borrow a modem in the mean time. I have contacted and had the ISP who have come out multiple times without coming to any conclusion other than that modem is the problem. Is there any reason for this? Is there an easy and clear way to troubleshoot other than just restarting?

SB8200v3S/N: {Edit:personal information}Loses connectivity daily. Have a bad modem. Need a replacement.

I seem to be finding mixed answers to this question.  So i am wondering what is the official upload speed of the Arris SB8200?

My SB8200 is running hot.  It is not too hot to touch, but pretty hot.  I tried going to Arris.com/consumersupport but it leads back to here!

I cannot log into my SB8200 with using the following credentials, USERNAME: AdminPASSWORD: password USERNAME: adminPASSWORD: password USERNAME: AdminPASSWORD: (last 8 digits of serial number)  USERNAME: adminPASSWORD: (last 8 digits of serial number) My ISP is spectrum

How do I hook up my range extender ?

My SB8200 will not work immediately after a power cycle.    It must be left unplugged for 15-20 minutes before attempting to reconnect.   The modem is noticeably warm when unplugged, and cold (cool) 15 minutes later.  This problem is very repeatable.   I’ve never had it connect immediately after power-down or reset in over 20 attempts over the last 3 months. Other than this one issue, the modem works fine.   What circumstances would create this behavior?  I need someone to explain to me why this problem is not a hardware issue…When plugged back in immediately, the modem will get to the point where the top three lights are solid green but the bottom one is blinking green.    It will stay like this for 2 or 3 minutes (I’ve not timed it) before resetting.   The start-up sequence repeats, ending with the same condition (top 3 solid green, bottom one blinking green).   This repeats for at least an hour (that’s the longest I’ve given it).

I have owned this Ariss SB8200 for several years. No problems. SP is Optonline. No problems. A few months ago, I received an upgrade from my basic service speed of 100mbps to 500mbps. No extra charge. Long story not worth going into. I am just starting to concentrate on solving this problem as I haven’t needed the speed.My problem is that I keep reverting to my 100mbps speed. I have done all the regular checks and tried different cables and connected directly to the modem. The issue always comes back to the fact that after several hours or days I suddenly find my speed back to the old 100mbps. Rebooting both modem and router in the proper sequence always gives me the full 500mbps for a finite time, then it reverts to 100mbps. The same when connected directly to the modem with the computer. The time it takes to revert is never the same.Is there something I should do to the modem to solve this?Thanks for any help.Regards,Dmin11

My old modem and router were both functional (slow and outdated) before purchasing and installing the new Sb8200.  Now I spent a few hours online with my internet provider and still have no internet with the sb8200.  My internet provider tried everything they could to get it to function, now they tell me I’ll have to have a tech look at it and if the problem is on my end there will be charges.  It’s obviously on my end, everything was fine (slow but functional) before I installed the sb8200.  What else can I try to make it work?

Dear the Reader or the customer serviceI just buy the SB8200 from Amazon and want to use in TaiwanBut I have a question about this pic belowSo I want to ask if I have the coax cable with the internetCan it use on the SB8200 Coaxial Cable jack?Your prompt reply would be greatly appreciated.

My SB8200 and SB6183 only get one upstream locked channel at 35.6Mhz. I see many posters have 4 locked upstream channels. How have other folks resolved this issue? Channel ID Lock Status US Channel Type Frequency Width Power 4 Locked SC-QAM 35600000 Hz 6400000 38.3 dBmV  Also the SB8200 on power-cycle takes 18 minutes to lock the upstream channel. The upstream channel tests 16.4, 22.8, 29.2 at different send power levels, till it reaches 35.6 and acquires lock. Has anybody else faced this problem.Power cycle timestamps are mm:ss.

Having issues with timeout for Unicast Maintenace. The modem timing out with error codes 16 and 24. Have confirmed all connections. Direct connect to modem (no splitters), eero 6 mesh network without issue. 

My apologies very novice at IT issues.  Have a Tesla solar gateway that need to connects w 2.4 and can’t seem to get it connect to my sb8200.  Sorry to bother, can anyone guide me to how to allow for this slower connection? Thank you. 

You know that little world globe that's normally position down in the right-hand corner of your screen. Right now it's not a globe but an icon of a computer screen instead.When I hover over that icon, I get that the 5Ghz Linksys routed is connected.   But when I open up that icon, where you would normally hit "connect" it say no internet connection. Thats my problem.  I just changed out an SB6141 and all connections worked.  I added this new SB8200, and I’ve now got no internet to connect to my Linksys WBT3200ACM router.But my cell phone, tablet, and laptop all connect to the router with a strong signal.  Its just this desktop HP that no longer works right.  Destops 2years old.I did get the correct connection momentarily when unplugging the router and resetting but that lasted but a few minutes