Question about Arris SURFboard SB4220 Modem

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Motorola 4200 modem

When home power line was cut off while this modem is active, re- starting this modem seems too hard to switch back ON again. It takes more than 24hrs to bring it back to normal operating conditions. No standby light shows and seems totally dead set.

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Ya switching back this cable modem would be tough bcoz of the battery back up
you hav two choices 1) remove battery and put it back up
2) with power nad everything connected to modem just unscrew the cable wait for 30 sec n screw it back in

Posted on Dec 08, 2008

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My motorola SURFboard SB5101 has a on power light, a blinking recieve light, and an on PC/Activity light, with the other lights off. what is wrong with it?


The light pattern you have described indicates that the modem can not establish a connection to your internet service provider (ISP). This is typically do to a signal related issue. To trouble shoot the problem you will need to connect the modem directly to the main cable line where it first enters into the home. You will know when the modem establishes a connection by the top 4 lights becoming green. If at any point all 4 top green lights start to blink in sequence than you will need to contact your internet service provider to "unwall the modem". Remember most internet service providers require you to register your modem on there network. So if you have not all ready completed that process you will most likely not have access.

I hope that information above has helped is some way.
If possible please rate this solution.

Sep 01, 2010 | Arris SURFboard SB5101 Cable Modem

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Online light blinkin in motorola sb4200


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.
4- Connect the internet cable back.
5- Connect the power cable back.
6- The lights on the front of the modem should start turning on one at a time; the top one first, the second one next...

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.

Usually, I call my neighbor who has the same ISP to see if their internet is down, before I call the ISP company.

Hope that helps.

Aug 22, 2010 | Arris SURFboard SB4200 Modem

1 Answer

I plug all the cord in the back of the modem.... the power light blinks, an then the dsl, an thn the ethenet light then cuts off all the lights, for those three, an start all over again an again.. never...


If the modem was supplied by your Internet Service Provider, telephone them for Technical Support, either to trouble-shoot, or to replace the modem.

Obviously, they want to keep you as a customer, paying them money every month. So, they should replace the modem "no questions asked".

Jun 15, 2010 | Arris SURFboard SB4100 Modem

1 Answer

Seimens Gigaset se587 ASDL Line speed goes


It turned out to be a phone line difficulty, not the modem. Seems there is a not so friendly mouse in my house. Thanks anyway. Live long and prosper.....

Sep 15, 2009 | Siemens SpeedStream Modem (4100) (SS4100)

1 Answer

Internet issues i have a seemingly similar problem. when playing a multiplayer network game, i can go only about 1 minute or two before i get disconnected from the server. seems like i'm losing packets...


Sounds like your exceed your bandwidth when you play online. Like you said you having packet loss cause you are not transmitting and receiving all the info due to your connection. And if you play more than one, two, or three pc at one time then you just cut your bandwidth severely. I recommend you check on your upload speed. If you have 128k up and playing multiple pc it will bottleneck.

Go do a speed test-- www.speakeasy.net post back your results

May 31, 2009 | Arris SURFboard SB5120 Modem

1 Answer

All Lights are on...


If the Cable light does not come on and/or the Activity light doesn't turn on, there is a problem with the plant equipment and you need to contact your provider to fix it. It could be a cabling issue outside of the residence or something could be down at the plant itself. This can also happen when the temperatures rise or if there is condensation inside the cable as it causes signal loss and increased noise on the line.

May 31, 2009 | Arris SURFboard SB5120 Modem

1 Answer

PC/ACTIVITY light along with the POWER light


I WANT SOFTWARE FOR MODEM MOTOROLA SUFBOARD 5120 MY MAIL IS JANADI_25@HOTMAIL.COM

Sep 05, 2008 | Arris SURFboard SB5120 Modem

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Only power and pc/activity light are on.


Only thing to do is buy a new modem. Mine did the same after a power surge. Left it all night off and in the morning started working again.
a month later, another power surge and never started egain. Just got me a new one and called Comcast to activate it. Problem solved.
Good luck there

Aug 05, 2008 | Arris SURFboard SB5120 Modem

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