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SBG8300

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

  • 362 Topics
  • 924 Replies
362 Topics
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SkunkmilkThe Many
asked in SBG8300
Can not log into the gateway on SBG8300 to change the Wi-Fi credentials

Replacing an older modem/router that was continuously dropping the connection. I finally got the connection to work, but now I can not get access to the gateway to rename the hardware or to change passphrases. Does this require a factory reset?

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Rockstar!
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uncouple141The Many
asked in SBG8300
iphone app does not show “my devices” connected to SBG8300

I installed the SBG8300 modem/wifi router yesterday. Connected devices are working great. I logged in the GUI and can see the connected devices, nevertheless the iPhone app shows “00” devices. I have restarted the modem and it does not fix the issue. What is interesting is that the web GUI shows all the connected devices, but not the iPhone app

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Avel1371The Many
asked in SBG8300
SBG8300 keeps disconnecting

Why do my SBG8300 Cable Modem & Wi-Fi- Router keeps disconnecting from my internet???  

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DemureninjaThe Many
asked in SBG8300
the rated voltage and current of sbg8300

I need to replace the ac adapter for the sbg 8300, but the materials that came with the modem/router don’t say what the device’s rated voltage and current are. Seems like the ac adapter would need to be 12 volts and 2 amps, but I used an ac adapter with those specs with this device and that adapter got fried and stopped working. Is there more information I need to select the right adapter? Can someone please confirm the ac adapter and/or voltage and current specs for the sbg8300 so I can make sure to order the correct replacement? Looks like Arris doesn’t offer ac adapters, just uses third-party ones. I want to make sure it’s compatible and pricing and info for ac adapters is all over the place and inconsistent. Please help!

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panekmiThe Many
asked in SBG8300
SBG8300 Blue lights blink 5 times then nothing after lightening

I know the SBG8300 is an older unit, but it has served me well for several years.It is powered via a large APC UPS so it is not connected directly to utility AC.I hard-wire (ethernet cable) my modem->desktop to maximize internet performance (Xfinity).Event: I was working online during a thunderstorm with LOTS of lightening. In a moment, my internet connection failed. I looked at my modem and it was DARK. My UPS was nominal and my desktop and other accessories were operating normally.I tried unplugging the Arris modem and waited 30 seconds to reboot. Immediately upon restoring power to the modem I noticed BOTH BLUE lights blink 5 times then the modem went dark again. I tired a hardware reset (small hole in back of unit) and received the same result. I tried unplugging then restoring power again and got the 5 blue blinks then dark again.An exhaustive search for this troubleshooting indication was fruitless.I suspect an electrical surge found its way up the COAX cable which fried the m

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GatorThe Many
asked in SBG8300
SSID For Surfboard SBG8300

My modem router connects to 2 different SSIDs: SB8300-BBB and SB8300-BB8? There something wrong with this model. Do I need to change it?

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Wi-Fi Warriors
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Keegdude98The Many
asked in SBG8300
cant connect to internet on SBG8300

I have the ability to connect to the wifi but there is no internet access, the apartment complex gave me this modem and said this was all i needed but idk what else to do to connect to it

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Wi-Fi Warriors
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dbowling90The Many
asked in SBG8300
SBG8300 Wi-Fi router with Fiber optics through frontier

We just got fiber through Frontier. Can the SBG8300 be used as just a WiFi router? 

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splineThe Many
asked in SBG8300
password change

how do i change modem password for accessing to my computer  

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Wi-Fi Warriors
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TexJay66The Many
asked in SBG8300
Setting up 2.4 and 5.0 ghz on SBG8300

How do I setup the 2.4 and 5.0 GHZ Networks on my SBG8300?

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Wi-Fi Warriors
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HalpmeThe Many
asked in SBG8300
Changing guest passwords for SBG8300 Access

I can’t login using the password that I just created when I did a hard reset to get to the pages to change my guest wifi passwords for security purposes. I have an Arris SBG8300I did two hard resets now to try to solve it and it skips the username creation item and goes straight to the create a password and reenter password page which I completed. I then changed the name and passwords of my primary daily Wifis - but to access the guest wifi band pages - I need to login using the account info...On that side, it’s saying that I’m putting incorrect credentials (“admin” and my new password). I tried the new password from the initial steps, the new primary daily wifi password, and the number password on the back of router, I tried resetting the router again and doing it all again and no success….I validated they were all correct multiple times. Is there another username other than “admin”, perhaps?  Thanks in advance!

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Wi-Fi Warriors
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drussell3The Many
asked in SBG8300
sbg8300 intermittent internet connection.

It's random. But, my modem looses both 2.4 and 5g connection. Randomly. Hardwire works fine. Usually resetting modem temporarily fixes problem. But, it can happen anytime. 1 day, 1 hour or even a few days later. Sometimes multiple times a day. My dad has same modem and never has this problem!

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Wi-Fi Warriors
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BriandenisefarleyThe Many
asked in SBG8300
Slow speed internet on SBG8300

I recently installed and activated through internet provider, Xfinity.  Slow sporadic WiFi, very limited range.  

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pakanapThe Many
asked in SBG8300
New SBG8300 wont progress past blinking green lights

I'm trying to setup this wifi cable modem.  Followed instructions 100% multiple times over many days. The modem WILL NOT progress past blinking green lights to SOLID GREEN lights where I can activate withy carrier.   Currently sitting on blinking green lights for 1 hour.  Please help. Xfinity says it is a device issue. 

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Wi-Fi Warriors
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ajnsandy58The Many
asked in SBG8300
No internet on SBG8300 and unable to login web portal to change the password.

I just moved. All of my devices connect to my SBG8300. However SBG8300 isn't connecting to internet. Can't login to my ARRIS gateway. Forgot password. Internet service unchanged with spectrum.

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Wi-Fi Warriors
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Gsrtr8300The Many
asked in SBG8300
Device not connecting on SBG8300

I have an SBG8300. The 2.4 and 5 G bands have been separated. I have 15 smart home devices connected to the 2.4, most of which work just fine (the ones that don’t are FEIT bulbs and outlets, which I have been told is a FEIT app problem. These problem devices randomly show offline). I recently bought a new device (a grill/smoker) but despite there being a full 5 signal bars, it won’t connect (it also requires the 2.4). The smoker will connect to my phone via hotspot, so the smoker manufacturer states it’s an issue with the router. But what that could be is anyone’s guess. So, anyone have a guess on what the problem could be? Thank you.

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Wi-Fi Warriors
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CathimacThe Many
asked in SBG8300
SBG8300 - No internet unable to activate by ISP

I just opened my new Surfboard SBG8300 and connected to same cable I used for old modem. I activated it thru Xfinity/Comcast but they cannot connect says appears offline. How do I resolve? 

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Airway911The Many
asked in SBG8300
Modem not turning on ARRIS SURFboard SBG8300

ARRIS SURFboard SBG8300My modem is not powering on when plugged in. No lights come on. Other devices plugged into the same outlet are working properly. I tried removing and replacing the power supply several times. I have tried another outlet with no success. 

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Wi-Fi Warriors
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JC_AdminThe Many
asked in SBG8300
Talktone Web Phone App is not working on SB8300

I have a web app Talktone to make phone calls using WIFI. It was working fine, but all of a sudden it states that it is being blocked by the firewall that I never did anything. I was using the SBG6900 DOCSIS 3.0    I ended up buying the SBG8300 DOCSIS 3.1 and the same issues. Spectrum told me that they changed to a new version because of speed. Can anyone explain/help.  Thank you!

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TingponmeThe Many
asked in SBG8300
Latency down on SBG8300

How can I get my Latency down? I’m on a Xbox One S. With an Acers monitor 240hz 0.5 ms 1440 HD. SBG8300 is my model. I have Xfinity there best package. Speeds are great. But that Latency?

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Wi-Fi Warriors
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DinoahmadThe Many
asked in SBG8300
Unable to connect ATM machine with SBG8300

I bought an ATM Machine unable to connect internet direct to modem. Error code TCP/IP Connection timeout. My 3 other devices work perfectly on the SBG8300. Please help.

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Wi-Fi Warriors
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bdnish04The Many
asked in SBG8300
increased data reported by ISP after new SBG8300 install

Is there something technically wrong with router? ISP said usage in last 14 days is 1.2TB+ . Prior to new SBG 8300 install, our monthly usage was <1.0TB. Nothing has changed except the install of new router

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Wi-Fi Warriors
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kgjohnstojThe Many
asked in SBG8300
software update on sbg 8300

I was told i need to update my sofware, but i cant find a way to do that

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Wi-Fi Warriors
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havoklokiThe Many
asked in SBG8300
Led lights are blinking and no internet on sbg8300

I have an SBG8300 and it is constantly blinking. The online and wifi are both blinking. I have tried unplugging rhe coaxil and power multiple times but it just does the same thing every time. I have also tried the factory reset button and it still does nothing. I let it sit for hours expecting it to eventually settle but it continues and I dont know what to do.

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Wi-Fi Warriors
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pdriThe Many
asked in SBG8300
SBG8300 indicators are solid green, but no Internet

My SBG8300 modem/router has worked fine with Xfinity for a month+, but now provides no Internet access even though both status lights are solid green and Xfinity shows no outage and good connection to the modem. I have tried disconnecting the cable from the wall and modem during several restart attempts, but the problem persists.  

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