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SBG8300

DOCSIS® 3.1 Cable Modem & Wi-Fi® 5 AC2350 Router

  • 363 Topics
  • 924 Replies
363 Topics
S
The Many
smolGaoThe Many
asked in SBG8300
SBG8300 Periodically Drops Internet

I have an SBG8300 modem/router connected to Comcast/Xfinity Cable.I bought it from BestBuy last month, and it was working completely fine in the first few days (around 5 days). However, it periodically loses internet connection about every 2-4 days, and I have to unplug and plug back the modem each time to restore the connection. I called the ISP customer service, and they said they had updated the settings, but the same scenario kept happening afterward.Is there any possible reason for this? The WAN status when the internet is not working is similar to the one when the internet is working.

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J
The Many
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The Many
larrys0227The Many
asked in SBG8300
Ethernet issue sbg8300

Installed an SBG8300. WiFi works fine, but Ethernet doesn’t list as an available network.

602
plemans
Juggernaut
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The Many
silver418The Many
asked in SBG8300
connects to 5g but not 2.4g

Hello, I can’t seem to connect to 2.4 but connects to 5g network. 

911
plemans
Juggernaut
R
The Many
rbwagnerThe Many
asked in SBG8300
wifi

Have wifi connection  but no green light on ARRIS SBG8300

1081
plemans
Juggernaut
D
The Many
duckie133The Many
asked in SBG8300
Register New Modem

Why can I not register my new modem on the website?

7412
M
The Many
P
The Many
penseanfooThe Many
asked in SBG8300
reset to factory setting

Bought a used SBG 8300.  Modem works except wifi was setup by previous user and I do not have the password.   I tried to reset the modem by pressing the reset button more than 5 seconds however the modem would not revert back to factory settings after the reset.   What are my options?

45561
TechRep
Cable Modem Commandos
K
The Many
krnwldnThe Many
asked in SBG8300
Optimum unable to provision SBG8300

Hello -- Optimum provisioning is not updating the WAN IP address properly to get out to the internet -- still showing the internal WAN IP address so can’t get out to the internet.  I can get the WIFI set up so it’s got have something to do with proxy or security or some setting within the admin portal.  They want to send out a technician at $60 for service call.  I don’t want to go there if someone knows what setting I should be updating to make it provision properly…..Any help is appreciated!!!

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Rockstar!
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The Many
KmaxThe Many
asked in SBG8300
cant log into router manager sbg8300

I am trying to log into my router manager. It's the default login. Username admin Password ?I've tried PasswordAdmin It's what Google said to use. Neither work. Any ideas on what the Password could be?

1891
plemans
Juggernaut
2
The Many
23GathrightThe Many
asked in SBG8300
Arris SBG8300 compatibility

I now have AT&T fiber optic using their modem/router in my house. Previously I had Comcast cable and used my Arris SBG8300 for WiFi.  I have a Cat5 cable running from my house to my detached garage which I used in the past plugged into my Arris Model SBG8300 (house) when I had Comcast Cable. The Cat5 cable was plugged into a laptop I used in the garage. My question is, can I plug my Arris into the Cat 5 cable in my garage, connected to my AT&T Router/Modem (house) and use it for Wi-Fi for some remote security cameras in my garage? 

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plemans
Juggernaut
A
The Many
AB86The Many
asked in SBG8300
Intermittent Connectivity with my SBG8300

Hello I have a SBG8300 and the wifi 2.4GHz always have an issue to connect, the 5G work fine and have no issues. It either won't connect or the specific wifi name not appear at all. The modem always need to be turn on and off every several days. It started happening in the last couple months and just getting worst now since I just reset the power 2 days ago. Now it needs to be reset at least twice every week and it becomes stressful all my securities devices need to be reset  each time. Please help resolve this issue.

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Wi-Fi Warriors
K
The Many
KNIGHTSKYThe Many
asked in SBG8300
I can’t log in or create an account in surfboard manager

I have been trying for the better part of an hour to log in to surfboard manager and it won’t let me create an account.  I put in my email address and the first ten times it said that it couldn’t find my email address, then it finally prompted me to create an account. I put in my email address and name and created a password and it keeps saying to enter a correct new password and it won’t allow me to get past that.  Help

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The Many
E
The Many
ewells11The Many
asked in SBG8300
SBG8300 No Internet

I recently got a SBG8300. I registered it with my ISP, Cox, and set it up. The solid green led indicator is on and I verified through the admin page that it was assigned an IP. However, the modem doesn’t seem to be able to access the internet. Both Ethernet and the onboard router aren’t able to provide internet access 

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Wi-Fi Warriors
R
The Many
RoseThe Many
asked in SBG8300
internet service but not wifi. have an Arris SBG8300. please help

Have aless than 1 yr old SBG8300.  Internet works with hardwired electronics but Wi-Fi will not how do I fix

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Wi-Fi Warriors
G
The Many
ginlaanThe Many
asked in SBG8300
randomly unable to access secure sites

I am randomly not able to access internet secure sites. When i connect to my wifi it states the connection is secure and have internet access and i do indeed have internet access. I am able to access nbcnews.com and other common non secure sites. Yet when i try to access a secure banking site or similar i am getting the connection is not secure message. it doesn't matter if it bing chrome or firefox. i have run network diagnostics and it states it is not finding a problem. randomly it will start working on its own with me not doing anything to correct it. For example while i was typing this on a different laptop i asked my wife to see what the error was, she said she couldn't tell me because it was now working. I have factory reset, Reloaded my network adapter. turned mac filtering off, restarted modem, played with firewall settings on cpu and router  i still have this issueSometimes one of those attempted fixes may work but mostly they don't and it will start working by itself for a t

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G
The Many
J
The Many
JohnThe Many
asked in SBG8300
security up dates for SBG8300

Are any software updates ever created for my Wi-Fi cable modem/router ARRIS SBG8300?How often should I replace my router/cable modem for security sake? The model I am using now I purchased in 2020 would it be out of date?

3595
plemans
Juggernaut
B
The Many
BlevyThe Many
asked in SBG8300
Xfinity can't activate new SBG8300...

Just purchased this modem and tried to activate on Xfinity and the tech I was working with was unable to see it.  The top LED on the front was a solid green, and the bottom one was blinking green.  After providing the MAC address to the tech and waiting, I was never able to get a proper internet connection.  I WAS able to get their ‘activation’ screen up, but when following all the steps I would end up back at the initial activation screen. To me this sounds like an Xfinity problem, but the fact that the tech was unable to ‘see’ my modem makes me unsure.  When we were done I just plugged my old modem back in and all worked fine.  So now my new modem is waiting for me to make another run at this whole installation.  He seemed to think that there may be a problem with the new modem, which is why I am here to see if anyone has any ideas.   I really don’t think I should need a tech to come install this.

4243
plemans
Juggernaut
1
The Many
1ShyGuyThe Many
asked in SBG8300
Locating Browser History SBG8300

Where can I locate the browser history? I have gone to the webpage for my SBG8300, logged in, and clicked on every possible option listed but have not been able to locate it.

2502
plemans
Juggernaut
J
The Many
JaredmThe Many
asked in SBG8300
hard wired tv buffers

SBG8300 modemprovider speed is 350, pay for 300 I have a hard wired tv that keeps randomly buffering, it doesn’t matter which app I am using on a Hisense Roku tv.I cannot log on to the gui interface because every time I try to log on the password automatically doubles in size when I hit the log in button, happens on desktop and iPhone.

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J
The Many
N
The Many
nicliftsThe Many
asked in SBG8300
"Connected, No Internet" - ARRIS SURFboard SBG8300

ARRIS SURFboard SBG8300 DOCSIS 3.1 Gigabit Cable Modem & AC2350 Wi-Fi Router Purchased this modem/router combo last month so that I could stop renting one through Midcontinent. The issue below has occurred intermittently since then, but worse over the last 2 weeks. I am not well-versed in this area, but will explain the best I can. I receive an error - every day - of "Connected, No Internet" on my Hisense android TV. Other devices (phone, laptop) will also disconnect when this happens. I've rebooted the modem (and affected devices) multiple times. My TV network settings will show "Connected - Signal Strength Excellent" but no wifi access. When I reboot the modem, I'm able to reconnect the other devices, but the TV will usually continue showing the error. (As of the time of this post, the TV is connected to wifi and working). I have a DVR security system connected to the modem via ethernet cable, which is unaffected by this connectivity issue.  My current service is Midco Internet 5

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The Many
D
The Certified
DBBDThe Certified
asked in SBG8300
Surfboard SGB8300 Firmware updated and slow speed

New modem/router. Subscribed to Spectrum 1G internet. Speeds slow - 30-90 Mbps with cable, about the same over Wi-Fi.Called spectrum, tech came out and suspects device needs a firmware update. Speeds were good out the cable - 800-900Mbps. When installing, I remember the blue/green flashing.Tech was kind enough to look in to it a little bit, but we can’t tell if the firmware on the device is most current.In the manager, it shows firmware 01.01.139.NCS installed. Is that the most current? any other advice would be appreciated.

3015
plemans
Juggernaut
M
The Many
Mr. MotoThe Many
asked in SBG8300
Change SBG8300 Username

I need to be able to change the default Username of my Arris SBG8300 Gateway from "admin" to something else. How do I do this?

1903
plemans
Juggernaut
O
The Many
oslobcebuThe Many
asked in SBG8300
Problem connecting devices to SBG8300

I am totally not technology savvy. My problem is connecting 3 mini Blink cameras and 2 older laptops to the SBG8300. I reset the mini Blinks and they won’t recognize the 8300 unless I unplug the router for 10 seconds. Then they may or may not recognize it, and when they do I enter the wifi password. Then they disconnect a few minutes later. Same with the older laptops. I have 2 laptops, 2 phones, and smart TV that have successfully connected without problems. Any idea’s why these camera’s and older laptops don’t connect. The problem started immediately after setting up the 8300. Hopefully this makes sense.

1253
plemans
Juggernaut
S
The Many
swubThe Many
asked in SBG8300
How to setup SBG8300 without App?

I have tried to setup using the old app and then the new one but it didn’t work. Now I want to try using web setup. 

1051
plemans
Juggernaut
1
The Many
1cdegmanThe Many
asked in SBG8300
cant connect to internet

I've had my gateway for over a year and just yesterday I was just watching Netflix and all of a sudden all my devices say can't connect to the internet. I've called cox and done multiple restarts and cable checks and everything checks good on there end but i still have the issues. They are sending a tech out tomorrow but I have to pay $75 🙄.  Any suggestions? 

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Wi-Fi Warriors
B
The Many
billjThe Many
asked in SBG8300
SBG8300 internal time is floating around - How do I perminantly set it?

I can’t seem to lock the router time and it floats intermittently. I don’t know if there is a problem tracking time or it’s getting set by 1 of the 3 included Time Servers incorrectly. Setting Automatic vs Manual seems to have no effect.Just bought a SBG8300 and it works great with exception of Parental Control and blocking timeframes for different devices. Behavior is intermittent and unexpected of when a block happens. After some trouble shooting, I noticed the  time display if floating all over the place. Sometimes 10 hours ahead, sometimes 8 or something. Once I hit the “Save Time Settings” button, it snaps back to the correct time I’m in (Pacific Time), but if  log out and log back in 20 minutes later, it may or may not be off.  User Steps: > Admin page https://192.168.0.1 > Gateway > Summary > Time (page is https://192.168.0.1/time.php) > Observe: “Router Time” value. Time Servers:clock.via.net ntp.nasa.gov tick.ucla.edu

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The Many
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