SBG7400AC2

DOCSIS® 3.0 Gigabit Cable Modem & Wi-Fi® AC2350 Router

  • 52 Topics
  • 130 Replies

52 Topics

R
The Many
rroyalty55The Many
asked in SBG7400AC2

SBG7400AC2 Wi-Fi intermittent internet speed

Modem rebooted the other day due to signal from WOW cable. Have 600mb download on wired, wifi averaging about 10mb. Wasn’t like that before the reboot. Also now can’t go further than 10’ away before signal drops. Am I missing a setting somewhere? Thoughts?. 

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VIP
29 days ago
B
The Many
bedge117The Many
asked in SBG7400AC2

SBG 7400 AC2 Public Static IP setup

I recently purchased an SBG7400AC2 Modem for a Public Static IP.  It was one of 4 modems approved by my Cable Provider when purchasing a static IP.I was given a gateway IP, Netmask, Device IP, and DNS servers.I was told by the cable company that I do not change the WAN settings and to leave it on DHCP.  I thought this was odd because I thought the Static IP was on the WAN side, but anyway, When I try to set up a network using the provided public IP, I get an error message saying it was not a private IP address range, and I needed to use 172., 192., 10., etc…  Am I receiving bad information from the Cable company or is there something else I need to do?My goal is to set my Unifi Dream Machine Pro to the Public IP address provided.  I have tried pretty much everything I can think of.  I even put the static info on the UDM-Pro and set the modem to bridge mode, but no luck.  Thanks in advance!

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B
The Many
2 months ago
M
The Many
mintongraceThe Many
asked in SBG7400AC2

How to return certified refurbished item purchased through Surfboard.com- SBG7400AC2

Hi!I recently bought an ARRIS SURFboard SBG7400AC2 Certified Refurbished (this was an accident, I meant to buy a new one!). Anyway, I need to return it because it doesn’t work. I’m trying to figure out how to return it, but all the customer support options say they cannot help me because my warranty is expired. (I bought it one week ago, January 6.)Surfboard.com says it should have a 1 year limited warranty, but I can’t find any information about that in the box. :(Thanks!

4
S
VIP
2 months ago
L
The Many
lucianoestevesmachadoThe Many
asked in SBG7400AC2

i need the HFC MAC to activate the modem - SBG7400AC2

Good afternoon, I bought two router 7400ac, the information on it is not the same as the information on the sticker, get the Serial Number of both, could you tell me the HFC MAC so I can install the router?   ARRIS DOCSIS 3.0 Gateway / Retail   HW REV: 3   VENDOR: ARRIS Group, Inc.   BOOTR: 2.2.0.45   SW REV: 9.1.103AA85   MODEL: SBG7400AC2 Serial Number: [edit: removed personal information]       ARRIS DOCSIS 3.0 Gateway / Retail   HW REV: 3   VENDOR: ARRIS Group, Inc.   BOOTR: 2.2.0.45   SW_REV: 9.1.103AA85   MODEL: SBG7400AC2 Serial Number: [edit: removed personal information]

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Wi-Fi Warriors
2 months ago
D
The Many
davidpdouglasThe Many
asked in SBG7400AC2

SURFboard SBG7400AC2 2.4 ghz settings for security cameras which loses live stream after 2 seconds

Arlo camera connects fine to the SBG7400AC2 and functions fine except for the live streaming aspect, which only last two seconds and stops. I’m thinking there must be a setting for the 2.4 ghz connection that I haven’t set correctly or the live stream would remain connected. 

4
S
VIP
3 months ago
J
The Many
J and NThe Many
asked in SBG7400AC2

How Can We Enable DHCP Server on Our ARRIS SBG7400 SURFboard?

We have received a large number of ARP Cache Poisoning attack notices from our antimalware.  They appear every 1 or 2 seconds. Their support advises that we need to “enable DHCP server on our router,” which is an ARRIS SBG7400 SURFboard.we purchased about 2 years ago. Please respond as soon as possible.  These ongoing notices are disrupting our work.

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J
The Many
3 months ago
M
The Many
MrSantosThe Many
asked in SBG7400AC2

Changing wifi name and password in SBG7400AC2

How to change my WiFi name and password  

2
S
VIP
4 months ago
J
The Many
jcsheffieldlvThe Many
asked in SBG7400AC2

Unable to login to Surfboard central app - SBG7400AC2

How come the chat feature never works for customer support? How come I can’t call customer support? My app doesn’t work.  I don’t remember my login and there is no reset. This is an obnoxious company.

1
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VIP
4 months ago
H
The Many
HydroguyThe Many
asked in SBG7400AC2

Printer cannot be found connected to Surfboard SBG7400AC2 Gateway via ethernet cable

I have an HP-Color-LaserJet-CM1312-MFP printer that I am trying to connect via an ethernet connection to a  SBG7400AC2 gateway.  The printer installation program cannot see the printer.  When it was connected to my previous Xfinity gateway I had to set up a static IP address for the printer before it could be recognized.  I think I need to do that again But am not sure how to do that with SBG7400AC2 gateway or if I can add the printer to the network another way..  I have two Lenovo laptops that connect to the network either wirelessly or by ethernet when in their docking stations and need to connect to the Printer. .  

1
plemans
Legends
4 months ago
A
The Many
AzpjstangThe Many
asked in SBG7400AC2

ARRIS Surfboard SBG7409AC2p has changed SSID to ARRIS-0000 and has no internet.

SSID changed to ARRIS-0000 and internet is lost. Have done multiple hard resets which haven't worked. I haven't been able to use 198.162.0.1 either. I can't get anything working through the app either.

1
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VIP
4 months ago
E
The Many
eric the bikerThe Many
asked in SBG7400AC2

switch my surfboard from 5.0ghz to 2.4ghz- SBG7400AC2

I have a SBG7400AC2 cable modem and right now it is at 5.0 ghz but I need to switch back to 2.4ghz because of a Wi-Fi enabled thermostat only will work with the slower speed.

1
plemans
Legends
4 months ago
7
The Many
7400willisThe Many
asked in SBG7400AC2

How increase my comcast speed with SBG7400AC2

I dc my comcast gateway modem and switched to SBG7400AC2 surfboard.my previous download was 400 , upload 120now download is 100 and upload is 10I’m not an “IT” guy, but please send me advice.Thanks

2
M
The Many
5 months ago
O
The Many
orangejelloThe Many
asked in SBG7400AC2

SBG7400AC2 Internet randomly drops

I’ve had this device for about a year and 5 months. It did okay until the last couple months or so. Now the internet- both ethernet and wifi- keep dropping at random times. I work from home, so this is obviously not a good thing. I have Spectrum 500Mbps plan. I haven’t contacted Spectrum yet to see if there were any problems with the line, but they were just out here summer of 2022 and didn’t find any issues, except they replaced the cable running to the modem with a new piece that had a 90* angle connector at the wall, and then it worked fine until recently.

14
S
VIP
5 months ago
P
The Many
Pareshpatil601
asked in SBG7400AC2

how to connect my Router to Lumos Fiber internet Modem in SBG7400AC2

My Router SBG7400AC2 aint supporting the Lumos Fiber or may be How to get it runnig need Help 

1
plemans
Legends
5 months ago
C
The Many
carlwThe Many
asked in SBG7400AC2

Vonage VOIP audio issues while connecting with SBG7400ac2

I have purchased a Arris SBG 7400AC2 modem and our Vonage VOIP service is experiencing audio issues ; no audio from calling party regardless of service they are using (VOIP, LL, mobile)

1
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VIP
5 months ago
G
The Many
Gary 07The Many
asked in SBG7400AC2

Can I run an ethernet line from my SBG7400AC2 to a wireless router extender?

I have my modem (SBG7400AC2) hooked up with an ethernet line/cord right beside my main computer. Works fine.I wanted to  run a 2nd ethernet line to another room (approx. 75 feet away) to a wireless router extender to boost strength. When I try it, my main modem router shuts off when I hook up the Wireless router extender. Any help or advice?  My modem has 4 ethernet out puts. Do I have to reconfigure something in the wireless router extender to make this work? TIA

2
plemans
Legends
6 months ago
A
The Many
ajust222The Many
asked in SBG7400AC2

how to update firmware on SBG7400AC2

Is there a way to update the firmware for  wifi and does anyone know the password of the day to view advance features? The password generator  produced a password but it did not work.  The wifi constantly buffers Spectrum changed out lines, and connectors but, there is still an issue with buffering Thank you in advance!

2
A
The Many
6 months ago
S
The Many
shannoncrowThe Many
asked in SBG7400AC2

Unable to sign in to surfboard central app SBG7400AC2

It's been a long time since I have signed in to the surfboard app and now it won't let me sign in. What can I do that doesn't involve a factory reset?

1
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VIP
6 months ago
C
The Many
Cesar74The Many
asked in SBG7400AC2

SBG7400AC2 not connecting to Internet

My cable co tech Tried a couple of times to connect unit to internet to no avail. Unit has two different Mac Address.The one MAC Adress on the unit ends in number 2 and the number of the MAC address in the package box ends in number 1. None of the address were able to connect to the internet  

1
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VIP
7 months ago
P
The Many
princeThe Many
asked in SBG7400AC2

GUI login reset request SBG7400AC2

I try accessing the GUI to setup guest Wi-Fi but got this message. Invalid user name or password, or your access has been locked due to multiple failed login attempts! model: SBG7400AC2

1
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VIP
7 months ago
R
The Certified
RetrokidThe Certified
asked in SBG7400AC2

how am i supposed to manage my SBG7400ac2 network when the Arris app doesnt work?

I bought the Arris Surfboard SBG7400ac2, and it was great, but then the app stopped working completely. Now I can't log in and I can't manage any preferences or options for the router. How can I get in and manage preferences and options if the app doesn't work anymore? 

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R
The Certified
7 months ago
R
The Many
rpdrdrsThe Many
asked in SBG7400AC2

DNS Override not working for SBG7400AC2

Hi there,So I’m trying to make use of the DNS Override feature in LAN settings, and even after hitting apply, the router isn’t able to block websites. What’s the issue?

1
plemans
Legends
7 months ago
D
The Many
dejectedownerThe Many
asked in SBG7400AC2

There is no Profile button for Parental Control

I am unable to add profiles, which mean I have to use global exclusions (which it doesn’t appear to have a way to remove them once added). Is there a way to fix the app or is this not a bug? I have a Samsung Galaxy 23.Not sure why none of this functionality was made available in the gui or for a Windows pc.

5
S
VIP
7 months ago
T
The Many
tpcmanThe Many
asked in SBG7400AC2

Web Interface - Operations password

I logged into the web interface, there are three headings at the top of the page: “Configuration”, “Operation”, and “Logout”.  When I try to log into the Operation heading it asks for a password and the password for the web interface doesn’t work.  Any idea on how to get a login/password for this area?  Thanks

3
S
VIP
7 months ago
K
The Many
kizzrangThe Many
asked in SBG7400AC2

Setup Wi-Fi modem through Surfboard manager app

I just bought the SBG7400AC2.  The set up instructions say I need to download the Surfboard Manager app/program.  I can get the app from Apple Store or Google store.  I trust those.  I have a PC and want to download the windows version.  The only places I see that available are places I have never heard of.  I am cautious.  Do I really need this?

3
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VIP
7 months ago
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