Modems

My S33 modem has a solid light green light, and the back LEDs show green and amber for the 1.0 GE port and nothing for the 2.5 GE port (which is the port I was using). I've tried to connect the ethernet cable and go to 192.168.100.1 but it won't load. Yes, I have unplugged and plugged it back in. Any advice? Still under warranty for another year. Also, makes a high pitch noise.

I’m trying to reset an Arris SB8200 modem to factory default.  I pressed the reset button for 12 seconds and then tried to login with admin/password and admin/last 8 digits of serial number.  Neither method worked.  I reset again, but still no luck to login to the Arris admin page. Any Suggestons?

I recently purchased the Arris SB8200. All the lights are green. Everything is working. I have Xfinity and shows it is  connected. But I am still unable to access the internet. Here is my question. I have an old Cisco linksys e2500 router. Is this compatible? All the lights are green and working on the router. Feeling frustrated as my thernet shows not connected even thou it is. I restarted both modem and router. All cables are plugged in and working. Lights are on but sadly no blue light the Arris SB8200. 

I have been banging my brain out trying to get my Linksys MR20EC router to access the SB8200 modem's webinterface. Every thing I have tried based on available information on the web did not work. And I mean everything.This method does not require you to touch your primary router, you know, the one that will not allow you to view your modem's webinterface. All this was tested with two older router/AP boxes and it works.This is specifically for the Arris SB8200 which has two ethernet ports. If you modem only has one, sorry, I can't help you.Here is a solution that does work. You will need another router, or a wifi extender that can work in AP (access point) mode. The SB8200 has two ethernet ports,you will connect the second router/AP to the open port. Please read this through twice so you have a mental picture of what you are doing.Configure the spare router or wifi extender (in AP mode).IP Address:192.168.100.2 Mask (

Hope there are users who can help gather information so that we can get routers that work. When I say “work”, this is irt accessing the 192.168.100.1 webinterface of the SB8200 Cable Modem through the router. WorkingLinksys EA6900 Not workingLinksys MR2000 (MR20EC)  Ver. 1.1.5.210166 So please list your router/SB8200 combination and state “working” or “not working” wrt accessing the SB8200 webinterface through the router (not a direct connect to the SB8200). Thanks

Modem has been working well, today though I cannot connect to the internet. Power icon is green, the second is flashing green, the other 2 are dark. Have rebooted multiple times, no change. Wondering what else I can do. 

The title says it all, after a week of back and forth, high-level Optimum tech support is telling me their system cannot activate my brand new Arris S33v3 cable modem. No explanation, no assurances of they’re working on it, just simply I can’t use it to connect to my internet service with them. So sorry, goodbye.   

My 8200 is compatible.  I had the Xfinity Comcast’s guy add it.  It is beans new.  It just resets for no reason. It’s not a compatibility issue. 

Have tried everything, but can’t get 192.168.100.1 to load in a web browser, therefore can’t access modem settings that way.  How can I change default password?  Is there a way through the Surfboard Central app?

Pretty much the title. Have had the modem for many years. Got a new router and went to set that one up. I unplugged the power from the modem and then plugged in the Ethernet for the router. After the I plugged the power cable back in, the only light on is the green power light.

Hello! My S33 modem just up and quit after about a year. When I rebooted it, solid Amber then blinking green for several times then no light. I’ve tried many times but it’s always the same. No xfinity outages in the area. Any ideas?  

Why is my S34 on Astound (Wave Broadband) displaying as Advanced Stream ISP in the Surfboard app?Also, download speeds are well below my plan speeds and much slower than my old Surfboard SB6190 that I just replaced. 

Hello, nice to meet you. My SB8200 modem stopped working. I got home from work and when I looked up, I had no internet access and the modem's lights were off. I just bought it on January 30th.

My husband reset the router to factory settings which is a TP link one and now our modem won’t work and our internet won’t connect. We have no WiFi connection through our internet service and Cox said we need the information from this modem provider 

Change username and password on DG6450A/NA. I did it once but now I keep getting  wrong user name/ password. I would like to change it on all my devices

So I just got a new s33 and I successfully registered it with my ISP provider. Now I am attempting to the device by changing the login from the default settings to personal settings.  When I attempt to enter the default settings as they are in the manual i get an error message saying they are incorrect.  Do I contact the ISP provider first or do I contact Arris for technical support? 

This is the same issue I get trying to register/validate warranty. The cardboard product box shows “S33” while the HTML access into the modem shows “S33v3.” Regardless, the “check your warranty” page does nothing, that is, doesn’t display an error message. The “register your product” page doesn’t have a “S33v3” product but does have “S33.” That combination gives me “The Serial Number and Model Number that you entered do not match.”  The product runs flaming hot (for electronics), connects for a while, then drops the connection. Another “community” post has information about signal levels; perhaps that will make this … product work better. I am glad I spent nearly $200 for this modem!

New to me SB8200 which replaced my CM8200A. Last night I got into the modem with the 8 digit serial number. After getting in, it asked to reset the password. Did that and copied the password to a file in case I need it. Was working fine. This morning I tried to get in with the new password and it failed to do so. Tried the 8 digits SN and it failed. Tried the “password” and it failed. I doubt this is normal because I haven’t seem much info here on failed passwords. By the way, I am using “admin” as the log in. Thoughts from the experts here? Appreciate it. Thanks

Hello,Would like to reset the pwd for my wifiThanks,

Arris sb2800v3 not showing up as home network on xfinity 

Can you please tell me how to access the event log on a surfboard SB8200? 

I tried to self-activate the modem with my ISP. It failed multiple times. I tried to activate the modem with their tech support as failed as well. The modem is on their approved list. Their support looked up the MAC address and no record associated with that MAC address. I also was able to confirm that the MAC address has no record and it is NOT associated with any known manufacturer.I bought the modem from Amazon and it was sold directly by Amazon. 

Trying to activate it online because customer service is closed. But when I put the serial number says, it doesn’t match 

I have an SB8200 and I’m not sure when it was purchased or how old it is. I know it’s not under warranty. What is the best way to get the ship or manufacture date of my specific modem?

My ISP plan is 200Mbsp. Works for what we have now. And unlimited.  Looking to upgrade from ARRIS SB6182. Will the SB 8200 work?  or is it too much for what we have? Cox cable wants me to get more data speed. Thank you for any info.