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I am having issues with ny current motorola modem sb5101. Since I own this modem (which was given to me by comcast in a promo offer), I would like to replace it.

What's a good replacement?

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up vote 2 down vote accepted

The Motorola SB6120 is a common upgrade from your current model. It supports DOCSIS 3.0 and has many controls and support from the majority of cable service providers.

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Your current service provider may have a recommended model; they may not have the best price for the device (so optional to look elsewhere for that model).

But if the ISP supplies it they may have an associated service/repair deal attached to it, that could be beneficial.

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Linksys makes a decent cable modem as well. I have owned two of them and never had any problem with them until the lightening strike a couple of years back (which is why I have owned two of them). Reliable almost to a fault, plug it in and it works.

Their current offering:

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