Question about Arris SURFboard SB4100 Modem

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My cable modem wont connect to the internet anymore.. all lights are on except the online light wich just continously blinks.. then when i go to logs it sais something failed what do i do?

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I have a similar modem, my online light ( orange) blinks all the time, it is supposed to when you are online.
Have you checked your cable input, is it screwed in tight, how about where it attaches to the wall connector.
Unplug your power lead to reboot the modem.
Check your internet settings.
Control panel / internet options / connections / lan settings.
Is automatically detect setting ticked, if not tick it.
Is use proxy ticked, it should not be usually.
Have you a spare ethernet cable to check if that is a problem.
Still having problems? write back.
BTW i am in UK so some of the advice may differ for you

Posted on Aug 20, 2010

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sounds like you may not have filters correctly installed. You should have signal filters which will seperate the Internet signal from the standard phone signal. There should be one which looks like a cable splitter with a symbol for phone and modem... make sure these are connected the correct way. If you also have any other phones or fax machines connected, they should have a filter at the socket....

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1- Disconnect the power at the back of the modem.
2- Disconnect the internet cable at the back of the modem (the cable from the wall to the modem).
3- Wait at least 2 minutes.
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5- Connect the power cable back.
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If the on-line light still blinks, you might want to repeat the steps above after shutting down your computer. Turn on your computer if the on line light is OK (not blinking).

If all fails, call your internet service provider (ISP) to see if the service itself is down for maintenance, or if there is a problem with high-speed internet in your area.

If you have a router, you might want to power it off before trying the steps above. Turn it back on when the on line light is OK.

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If your internet light is off. It means you need to contact you internet provider because they need to configure your modem/router for your username and password. You can only get that information from your internet provider.

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According to the user guide, the modem is trying to connect to the isp. If it is continually blinking, check all your cables. Once you are satisfied all cables are properly connect contact the isp to find out if there is an outage in your area and if not they can help you.

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hi, there are two ways to assit you on this issue.Either you can call belkin customer care which is a TOLL FREE no. on the product box and get assisted or else proceed with the following basic steps.
1. the product that you have is an obsolette.
2.Before troubleshooting the belkin product. Please connect your computer directly with the modem (without router)on the ethernet(lan) port and check for the solid lights on the modem after turning it on, after that check for internet connectivity, if you can go online, its fine else you need to contact your modem vendor and get fixed.
3. if u can go online, then connect your router isolated port to the modem amd your computer back to the router's lan port(port 1) and check for the solid internet,power,modem,lan lights on the router.
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You might try this:
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6 power up your router.

Did that work?

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Well, you are very correct with the activity light blinking and the increased blinking except the fact that modem will encounter a problem in future...
The 5 different lights on your modem namely Power, Ethernet, DSL, Internet and Activity have their own indications and explanations.
1. The Activity Light indicates the amount of activity that is takin place on the computer on the Internet though the activity might blink even when you are not browsing. This can be explained by stating that the computer constantly keep sending signals  about it being connected to the internet and any other acknowledgements..

So, you've got nothing worry about unless the Power or the Ethernet or the DSL or the Internet light Blinks....
Cause they are the resultants of a fried modem(check for the adapter), faulty LAN connections, interrupted Dsl line and the account verification failure indications respectively.....

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