Question about Arris SURFboard SB4100 Modem

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Hello, I have a SB4100, Cable Modem,and Videotron tell me that they want to change it to replace it by their new modem. But this one works pretty well. Do I have to change it? Thanks a lot!, Michael

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Need to hook up Belkin G wireless router to Motorola SB5120

I have a Motorola SB5100 Cable modem and i have a belkin N wireless ROuter..i have conncted the wire from modem to router and computer to router and it doesnt work??what do i have to do??

Posted on Feb 26, 2008

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physicistFL
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SOURCE: need program for sb4200 modem how to put new program in to modem

Hello
I can sympathize with the problems you are having with Comcast.  I have had similar ones to yours at my house not too long ago.  Have you called Comcast and had them enable the MAC address of the modem?  If not, give them a call, and they can have you up and running in about 5 minutes.  Depending on the modem, the MAC address will be on a label on the bottom or back of the modem.  Make sure that you have it correctly written, have your Comcast account number, and call them.  If they tell you that you need an appointment, tell them you want it escalated to a tech.  With that address and your account, once you are enabled by Comcast, you should be in business.
Hope this helps you out!
Ken

Posted on Jan 08, 2009

ohms
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SOURCE: ARRIS Modem + D-Link router = no internet

when you are on Cable Internet with a "modem" only connected directly to the computer, what the ISP see is the computer's MAC Address (command prompt -> type ipconfig and hit enter).

put a router (which has it's own MAC Address) in-between and the ISP wont let you cause it sees the router not the computer.

check physical connection: cable modem -> router -> computer(hard wire for this troubleshooting)

access the d-link gui and locate the “Clone MAC Address" button (supposed to clone the computers MAC Address - verify if it's the same), save settings & reboot the router.

Posted on Jan 26, 2009

  • 1 Answer

SOURCE: Cable modem connection problem

Hi, First of all that particular modem is an End of Life modem (meaning it is no longer recieving updated firmware). But that still does not neccesarily mean that its your modem what you need to do when your modem cuts out is to note the leds on the front of your modem. If the modem gets stuck on either the 2nd light from the top or the third light then it is definitely a cable problem. Contact your cable co and tell the tech what lights were stuck blinking while you could not get online and he will know what that means. If you need some more help let me know, because I can explain more. good luck

Posted on Jul 04, 2009

  • 176 Answers

SOURCE: i have a sb4100 cable modem and the

The modem that you have is getting old and may be going bad but here are a couple of thing to help you out.

Often times this is premises related signal strength issue.
Items that you can check.
1. Is the coax line tight in the back of the modem and at the wall.
2. Are there any splitters where the cable comes out of the wall before it attaches to your modem. If so remove them and attach the cable directly to the wall from the back of the modem and power cycle the modem.
3. Do you have a coax cable line that goes directly from the outlet the modem is attached to the point that the cable service enters the household. Each time that you split your coax line it takes away part of the signal and the more times you split the more likely you are to not get a connection to the internet

If all of these items are in place and you still are having problems call your service provider and schedule a service call or try a new modem. Good luck.

Posted on Jan 02, 2010

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I have a Motorola surfboard sb4100, i used it before so i know it works. In fact it was with adelphia, when they were around in my area. Now we have time warner. I tried it before, with time warner and it...


You need to call Time Warner and tell them that you need to activate your modem. I had to do this when I switched modems for Comcast, so this should solve the problem.

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The SB4100 is a digital modem that uses cable TV network to provide broadband Internet access, it can't work with an analog telephone line, for this type of Internet access (also called switched Internet connection), you need an analog internal or external 56K modem, and also you'll need a user name and password (an account) from the Internet provider service (ISP) ; for a temporary Internet connection maybe a prepaid cellular modem (GPRS, EDGE, 3G or 4G) USB type could help you better.

Feb 27, 2011 | Arris SURFboard SB4100 Modem

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I have a sb4100 cable modem and the "online" LED keeps blinking and it resets itself and will never go online


The modem that you have is getting old and may be going bad but here are a couple of thing to help you out.

Often times this is premises related signal strength issue.
Items that you can check.
1. Is the coax line tight in the back of the modem and at the wall.
2. Are there any splitters where the cable comes out of the wall before it attaches to your modem. If so remove them and attach the cable directly to the wall from the back of the modem and power cycle the modem.
3. Do you have a coax cable line that goes directly from the outlet the modem is attached to the point that the cable service enters the household. Each time that you split your coax line it takes away part of the signal and the more times you split the more likely you are to not get a connection to the internet

If all of these items are in place and you still are having problems call your service provider and schedule a service call or try a new modem. Good luck.

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I assume this is a cable modem? You need to call your cable company and have a trouble ticket created. I worked for the cable company installing cable for quite a while and I bet my paycheck the signal getting to the modem are below specs and that's why the modem gets dropping the internet connection.

Hope this helps.

Aug 13, 2008 | Arris SURFboard SB4100 Modem

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