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Customer Review

16 of 17 people found the following review helpful
5.0 out of 5 stars Excellent!, April 15, 2012
Verified Purchase(What's this?)
This review is from: Motorola SB6121 DOCSIS 3.0 Cable Modem in Non-Retail Packaging (Brown Box) (Personal Computers)
I am using the SB6121 cable modem with Comcast cable. Setup was fast and easy. Plugged in the box in place of the old one, and called Comcast. The service representative knew what he was doing. It took about 20 min from when I called to everything working properly (including hold time). Make sure to have the MAC address handy when you call. For this packaging, the MAC is on the sticker on the bottom of the unit, as well as inside the cardboard packaging on the stickers on a paper strip.

The indicators on the box are great. The receive and transmit indicators are bright blue if it detects a docsis 3.0 connection, green if it detects a docsis 2.0 connection. These receive, transmit, and online indicators are steady if connected properly. Very easy to know the status at a glance from across the room. A note: On initial powerup (before calling Comcast), the receive / transmit light settled on green, and that had me wondering what was going on. It turns out that Comcast had to get the correct profile downloaded on the box, and the right configuration setup at their end before the indicators are meaningful.
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Showing 1-1 of 1 posts in this discussion
Initial post: Mar 16, 2013 9:12:16 AM PDT
Sandra says:
I don't have a Customer Number and that appears to be a problem. Did Comcast configure your modem with the Serial Number and/or the HFC? Thanks.
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