SB8200

Hot to the touch. I can barely pick it up in summer. I have it sitting on my A/C vent with the furnace fan running 24/7. Temps read over 100 degrees F. Is this normal? It DOES affect my internet connection, signal get dropped and is very slow at times.

Is the SB8200 compatible with AT&T DSL internet?

Arris router- SB8200  Hey everyone, I’m trying to use my company VPN for my work computer with Cisco. I keep getting an error message saying my current location is restricting access to the internet, well I know my internet is working fine and when I talked to my provider they mentioned it could be the router. Does anybody have an idea of why I need to do to allow my company VPN to connect to the computer 

I have a SB8200 and use to have wow as my SP. Well I now have spectrum and it is still showing wow on the aris app under device details. How can I correct this?

Xfinity did a two week upgrade to infrastructure in our area and since it has been completed, my SB8200 goes down 5 or 6 times a day, typical for 10 to 15 minutes each time.  Xfinity is telling me that the modem may no longer be compatible with the newer signals.  I have a tech coming, but not sure what that will do.  keeping up with technology is always a moving target.

SB8200 will not power-up, no lights.  Website will not validate the S/N to reach tech support.  Confirmed 12v at plug.  Purchased new Jan 2024, so still within warranty.

How do I enable WPA 2 or WPA 3 on an Arris 8200 modem 

Recently bought a new 8200. New cat6 cables. Can achieve 950 down directly connected to my PC. When I attach it to my router, it default negotiates to 100mbps full duplex. If I set it to 1000mbps full duplex it immediately loses connection to the modem. Cables are all fine, work individually. Can't find any information online of people encountering a similar issue

I worked with service provider to get the new modem registered but it isn't coming up when I search for available networks. I have Internet as it is working with the Ethernet cable. How do I get the new modem to show up in my available networks?

Order # 61170After reading through these forums, there seems to be a serious issue with your order processing. Multiple people are reporting no order confirmation received after placing an online order.  I have the same issue. My credit card has been charged. I have no order confirmation. I have no way to log in and check if the order is being processed because when I attempt to create an account it says my email is already associated with an account. The “forgot password” option does NOT send a password reset to my email address. I called technical support and they assured me I would receive an email Monday 8/25/25 by end of day. It is now 8/26/25 and I have no email confirmation. What is going on Arris?!?

My SB8200 does not work.  All lights are flashing rapidly.  I tried a different power supply, outlet, coax cable, and resetting it with no luck.  I think it’s dead.  It should still be under warranty, but I cannot find the serial number on the website.  Please help.

Hello, My Arris SB8200 modem no longer powers on (no lights, even with a known working outlet and power adapter), so I believe it has failed. I am looking to request a warranty replacement. However, when trying to verify the warranty for my modem with the online warranty tool, it says it cannot locate my serial number. The modem was purchased less than 2 years ago from Amazon. I can provide the serial number and order details upon request.

I have a new SB8200 that I connected to Spectrum. When I connect my PC to the ethernet port I have access to the internet, but I cannot connect my router to the second port. When I do it does not indicate internet access. If I remove the PC and reboot the modem then the router gets access to the internet but as soon as I plug in the PC the PC can’t get access.What am I doing wrong?

My connection randomly keeps shutting off. I use a w21 arris modem with a surfboard model sb8200. I have tried hard resetting it, unplugging both for 5-10 minutes, I have tried moving the router around the house. To no avail. It used to work great, now we can hardly stay on the internet for more than 5 minutes at a time. Is there any solution to this?

My modem is receiving internet from Xfinity but unable to connect to an Orbi router. Upon speaking with a technician at Xfinity they told me it was a manufacturer issue with the modem

Are these guys still in business?  All phone numbers are disconnected  

Hi, I would like to ask if the SB8200A modem is in any way compatible with the SB8200B modem. The 8200A is supposed to use 6 MHz channels, while the 8200B should use 8 MHz channels. Is it enough to just flash the firmware, or is it a different hardware altogether, meaning you can’t turn an 8200A modem into an 8200B? Thank you for your answer. 

SB8200 chat worked fine one day, np checking warrantyNext day will not accept the same info, so no way to chatAfter registration and proper activation using MFC MAC, drops from high speed to almost zero for 5 to 30 seconds or longer, happens every 2 to 5 minutes all day longI am almost ready to return but would love to chat before I do

Lost power this weekend (it was connected to an APC UPS) and after reboot the SB8200 steady blinks (all 4 LEDs and the Ethernet ports).  There doesn't seem to be any decernabIe pattern.  I also can't get DHCP directly connected to a computer or communicate with a static IP.  Did the 10 sec hold several times on the reset button to do a factory reset.  Behavior continues and is persistent regardless of what's attached to the modem.  Device is still under warranty per this site.

If its not, which model is? Please

SB8200 I did a factory reset because i couldn’t find my notes on the password i had created and the passwords online were not working. I disconnected the coax before the factory reset.  Tried logging in….browser says it can’t reach it even though i am connected to it via CAT 7. I am getting this error:   PR_CONNECT_RESET_ERROR I have tried both Edge and Firefox.I connected the coax and get online but still cannot get to the login page of the modem.  I want to confirm the mHz that it is operating at to make sure it is in the acceptable range for Comcast.

I suspect my SB8200 purchased in 2024 is starting to fail, but I cannot contact customer support due to the website saying my serial number cannot be found. I have tried entering it multiple times in different formats with no luck.

Model: SB8200All of a sudden stopped working. Checked lights, all of them were lit. Unplugged for 10 seconds. Now it shows power button solid green, transmit light blinking, receiving light and internet globe no lights just blank. Tried holding the tiny white reset button in the back until all lights in the front flashed.tried without any wifi extenders plugged into ethernet, still no luck. I’ve had this modem for quite a while at least 3-4 years.

How do I find the correct network name and password 

I had an older model SB 8200 , and it worked perfectly for a year, then started to constantly reboot at random. I purchased a brand new SB 8200 v3 , installed it, it works great, except that it randomly reboots too! It just resets, which drops the internet, and then boots back up and the internet comes again. This is problematic for someone working from home who loses link at random, even though it reboots pretty quickly. Why does my SB 8200 just re-set for no reason. It is brand new!