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Wi-Fi Modems

Cable modems with built-in Wi-Fi router

1876 Topics
H
The Many
HczwickThe Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
send/receive light blinking on install

I’ve just received the SBG7400AC2 in the mail, and followed the instructions to get it set up. When it turns on, the top light and bottom two are solid blue. The middle light (internet connectivity) is off entirely, and the second light (send/receive) is blinking continuously. I am unable to connect using my service provider. I have let it sit overnight and tried again, as well as completely disconnecting and reconnecting it. Has anyone else had this problem, and how did you solve it? TIA!

2601
plemans
Legends
1 year ago
A
The Many
Al NonymousThe Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
How do I tell if it's Comcast, or my gateway router, causing random internet disconnects?

In the last several months I’ve had to power down/power up my “Xfinity-compatible” SBG6900-AC Gateway Router dozens of times because one or more of our computers or iPhones mysterious lose Internet connection. How does a Comcast Xfinity customer figure out whether it’s a problem with my SBG6900, or some kind of problem with Comcast Xfinity?   My SBG6900 error log shows repeated Critical arcane events like, “ No Ranging Response received - T3 time-out” and “ Started Unicast Maintenance Ranging - No Response received - T3 time-out” or “Honoring MDD; IP provisioning mode = IPv6, No Maintenance broadcasts for ranging opportunities received - T2 tiime-out”. It’s all but impossible to talk to a human Xfinity technician anymore; all phone support leads me in circles. The cynic in me also wonders if Comcast is trying to drive customers to exasperation who bought their own gateway routers, to get them to rent Xfinity’s equipment again, due to “growing incompatibility” or some such pretext. NOTE

1553
plemans
Legends
1 year ago
N
The Many
norwoodrick3The Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
ethernet ports

four ethernet ports only one works on mySBG6950AC2

441
S
Wi-Fi Warriors
1 year ago
D
The Many
DellinspironThe Many
asked in Wi-Fi Modems - General
Login to Surfboard acct

Created new Surfboard acct. hoping the User name & Password would allow me to make some changes to my arris 6900-AC gateway. That did not work.  How do I get a User & P/W that is required when I try to sign in with the Gateway I.P. ?

931
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Wi-Fi Warriors
1 year ago
M
The Many
maestsigThe Many
asked in Wi-Fi Modems - General
How can I now about updates for the firmware for Wi-fi Cable Modem

I  installed the model Surboard SBF10, I just need to know if the firmware is updated or how can check for updated and steps to do it?

4031
plemans
Legends
1 year ago
M
The Many
MoodytravisThe Many
asked in SBG10
Arris Surfboard SBG10

I originally used my Arris SBG10 a few years ago, before the new app came out. I just recently added another internet package to my home to connect security devices to and planned on hooking it back up. I did a factory reset and now i have no idea how to set up wifi... please help!!

9451
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Wi-Fi Warriors
1 year ago
P
The Many
port43The Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
Why can't I access the "Operation" section?

Once logged into the web interface, there are three headings at the top of the page: “Configuration”, “Operation”, and “Logout”.  I am guessing that “Operation” is where I can view traffic or logs and whatnot but when I click it, I am presented with another login page that will not accept my admin password or the password from the side of the physical gateway. I cannot find any documentation or resources explaining how to correct this. What am I doing wrong?

1913
P
The Many
1 year ago
B
The Many
belbakriThe Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
PC name not showing up in client list of SGB7400AC2

I have a new mini pc that connects tot he network via wireless but it’s PC NAME isn’t showing up in the client list of the Lan Settings for the modem.  It shows up as “unknown”   How can I fix this?…. thanks!

532
B
The Many
1 year ago
T
The Many
Tragic_ComicThe Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
wired connection for ARRIS SBG7400AC2 not working

I have a ARRIS SBG7400AC2 router/modem to use with Xfinity. For a while now, the wired Ethernet  connections do not seem to be working, but the Wi-Fi works just fine. I have tried different Ethernet cables, and different ports, but the result is the same. I had the wired connections leading to me PC and printer. But now I can only connect to both via Wi-Fi. I do have a Blink doorbell dongle plugged into the USB port in the front that seems to work fine, too. I noticed this happen after we had a lightning storm one day, so I’m wondering if that was the cause. The router has been unplugged and restarted many times, but that hasn’t fixed the issue. Is there a way to test and see what the issue might be? I’m just trying to figure out if maybe there is a different way to reset that might fix things, or if there is something that just got fried internally for this to happen. Any insight would be appreciated. Thanks!

15091
S
Wi-Fi Warriors
1 year ago
T
The Many
TabethaThe Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
firewall

How do I change my firewall settings so I can get onto a website? I use this website for work and can access it anywhere but from my home unless I long in using my iPhone hotspot. If I use my home internet it will allow me to get to the website but when I attempt to log in it gives me a 404 (not found) Error

1361
S
Wi-Fi Warriors
1 year ago
I
The Many
idiom444The Many
asked in SBG8300
Arris SBG8300 Unable to open ports

I am attempting to host a Space Engineers dedicated server to play with my friend. This application by default uses port 27016.Forwarding this port in my modem and using canyouseeme.org I am unable to get the port to report open even after using a variety of different fixes.5I am able to see my server in the LAN section of the server browser but it does not list in the public facing list as it should be if the port was open.I have disabled windows firewall/defender and also Malwarebytes while trying to sort this out.My ISP is xfinity and I already called them to see if there was something weird on their end but they said it is a modem or PC configuration issue.DMZ doesn't work either says my ports are still closed.I feel like I know what I am doing here normally and am very confused. Spent a good amount of time trying different solutions I have found online and have been unable to sort the issue.

1761
M
The Many
1 year ago
J
The Many
JoyceThe Many
asked in SBG8300
SBG3800: Internet speed 450 mbps but WIfi 70 mbps

Pretty simple:  Using the Surfboard app, showing internet speeds of 450 mbps but shows only 70 mbps on WiFi which is observed on connected devices.  I’m guessing it’s something very simple I’m missing.  Using spectrum.  At my home when I updated to new modem immediately WiFi went to 350 mbps. 

1163
J
The Many
1 year ago
L
The Many
LeoFRThe Many
asked in SBG8300
SBG 8300 Blinking Both Lights

Hello, My SBG8300 is blinking both lights at the same time (fast blue on both) after a factory reset. My MediaCom technician checked everything and seems that my router is the issue.See the attached picture. Is there anything I can do, or is it the end of it?Thanks

10275
plemans
Legends
1 year ago
1
The Many
160MHzThe Many
asked in SBG8300
Does SBG8300 5GHz have Channel Bandwidth 160MHz?

I got the SBG8300 a few weeks ago and having some video lagging issues with my laptop. I’m paying for 400Mbps. The laptop has an Intel wireless-AC 9560 Channel Bandwidth of 160MHz on 5GHz. I did SpeedTest from about 30ft from the router. and get about 100Mbps. My iPhone gets 375Mbps from the same spot. I don’t know about the wireless on the iPhone but is this a fair comparison?Does the SBG8300 go to 160 or is 80MHz max?  Would it help if I had a 160MHz router?

321
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Wi-Fi Warriors
1 year ago
S
The Many
swiss420The Many
asked in SBG6950AC2 | SBG7400AC2 | SBG7600AC2
arris sbg7400ac2 Unable to login in with default admin username and password post factory reset. Keep getting Invalid user name or password, or your access has been locked due to multiple failed login attempts!

Hello,, Forgot my admin password for the router so performed a hard factory reset.  Since then I am unable to login with default admin credentials.  Yes checked my typing and also attempted with cusadmin and serial number and last 8 of serial number.  Any suggestions?

12915
plemans
Legends
1 year ago
G
The Many
GravesThe Many
asked in G34 | G36
new g34 no internet connection

The g34 cable modem will not connect to the internet. The isp has activated the device. I only have one blue light strip at the bottom that glows solid blue. No connection to the internet.

1552
N
Rockstar!
1 year ago
T
The Many
tsmeyerThe Many
asked in G34 | G36
Unable to see G34 Wifi on older computer

I cannot see my G34 network on an older laptop. This is not a problem with the password not working.The laptop’s network adapter is 802.11 n, so it should work. It’s not even seeing the G34 as an option to connect to.

1444
T
The Many
1 year ago
I
The Many
InspireColoradoThe Many
asked in SBG8300
SBG8300 and Google Mini

I recently upgraded to the SBG8300 router. I have reconnected all my wifi devices for the exception of my Google Mini. It fails to connect via wifi. I have performed a hard reset to the mini, added both 2.4g and 5g as network options,, tried new google mini and spoken to tech support. It worked fine with my old router. I use it as the doorbell chime for my Nest front door camera. Google has no ideas and claims it’s the set up of my SBG8300. Arris tech support can’t find the answer either.

601
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Wi-Fi Warriors
1 year ago
K
The Many
kondojThe Many
asked in SBG8300
SBG8300 Bricked?

Hello.It seems that my modem is bricked. Everything was working until the connection dropped. One solid blue light appears for the power icon. Browser will not connect to 192.168.0.1 or alternatives. Tried 15s , 30-30-30 method to factory reset, doesn’t work. Power cycling multiple times does nothing as well.Can this be salvaged? Any help would be appreciated.

1443
plemans
Legends
1 year ago
D
The Many
dorentliThe Many
asked in Wi-Fi Modems - General
SBG6580-2 Wi-Fi security key not working

Our devices are no longer connected to our Surfboard SBG6580-2, and when we try to reconnect for internet service, we are told that we have an incorrect password. We have used the Wi-Fi security key that came with the Surfboard all of this time. We’ve reset the Surfboard, including the 30-30-30 reset, and also had Comcast reset it, but we’re still unable to connect. Any solutions to this problem?

1062
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Wi-Fi Warriors
1 year ago
D
The Many
djohnsonThe Many
asked in Wi-Fi Modems - General
username/ password factory reset on SBG6580

I recently purchased a SBG6580 thru a previous owner because I needed something simple for my new place. I am trying to figure out how to lock my security but needing help with the username and password on the 192.168.0.1. Does anyone know the general way to login so I can secure my device?  

7831
N
Rockstar!
1 year ago
Surfboard Sux
The Many
Surfboard SuxThe Many
asked in G34 | G36
G36 Can't login to mobile app or web gui

After installing & connecting via ethernet all my devices I let the network run a few days.  I logged in & out of gateway from mobile app & web browser, with no problem & was convinced everything was working well. I attempted to relocate the router to a central location & it took forever to come back online, nearly 40mins!!!  Now I’m having connectivity issues, cant log into mobile app or through web browser.Like many people, error message about my browser version not up to date, (turn off firewall) certificate errors,  (let anyone access), then finally the web browser loaded the login page after a long 10 min wait only to enter user & pass “Operation time out, try again” . so I click login. wait a long time as the system thinks it over only to get timed out again.  but next time a intentionally added a charractor to the password to see if I get time out error or invalid password. I got timed out!!! then I sat back and scratched my head. Smoked a little. and an

2682
Surfboard Sux
The Many
1 year ago
R
The Many
rowantreeThe Many
asked in SBG8300
SBG8300 defective puma chipset?

Xfinity keeps emailing me stating my Arris Surfboard SBG8300 is no longer compatible. We’re supposed to be getting 800 speeds and are getting 500. Someone told me this is because the SBG8300 is known for having a defective puma chipset. Is Arris offering a fix for this? Mine is still under warranty and I did purchase a 4 yr product replacement plan from Best Buy. 

4623
R
The Many
1 year ago
B
The Many
BigWaveDerekThe Many
asked in Wi-Fi Modems - General
Potential Help on a SBG6782-ACH

I’ll try to hit the main points quickly:SBG6782 seemed to be working well about 2 months agoHad a major power outage and internet provider was down for a day or two (Suddenlink/Optimum)When power and internet came back on, my modem wasn’t working at all or barely at all and cable provider said that I needed a firmware update on my modem (which they supposedly did from their office).  After that the modem was dropping the signal about 1-3x times an hour (and sometimes more than that)Service call and it seemed like there were some issues that they resolved (like my modem not being in their system anymore etc) and some line to home cleaning up, but after a few weeks, modem still dropping a lot (2-3 times an hour).  Another guy comes out and shows me that I have a really good signal to my modem but I couldn’t get internet… I disconnected routers etc. and got the internet working and thought that was it… BUT modem goes back to dropping signal 1-3x / hourFinally convince them to let me borro

1594
N
Rockstar!
1 year ago
P
The Many
PapatsfanThe Many
asked in SBG8300
2.4 ghz issues

When I try to connect a 2.4 ghz device (smart plug, etc) I either get an incorrect password when trying to connect or it gets connected and then drops.  I know the password is correct.

999
N
Rockstar!
1 year ago
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