Jae_Kim's profile

Jae_Kim

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cable modem

Hi

I have been using SB5120 since 2006 and tried to replace it with SB6121.

However, when I switched to SB6121, I encountered no connectivity. I am currently subscribing Cox preferred cable internet.

Did I do something wrong or any suggestions?

Thanks in advance.

Jae

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Tecknowhelp

Valued Contributor II

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2.8K Messages

Define no connectivity? What lights do you get on the front?

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Grymmie

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You have to call Cox Technical Support and provide them with the MAC Address of the new modem for them to access and activate.

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wees41

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or self activation via the web also have bypass any routers when switching modems

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DerrickW

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1.2K Messages

Hi Jae, I can help you with that.  Can you send an email with your account information, also please include the manufacturer, model number, serial number and HFC MAC address of your modem so we can add it to your account in that email.  

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