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Customer Review

209 of 234 people found the following review helpful
5.0 out of 5 stars Fast, increased bandwidth, ready for IpV6 addressing, September 16, 2012
Verified Purchase(What's this?)
As many of you, I am a Time Warner customer. I was disappointed with my bandwidth speed. I was paying for "Turbo" at an extra five dollars per month but was't seeing an improvement (I tried on heavy and light usage days / periods). So I purchased this cable modem, after reviewing the compatible modems, on Time Warner's site. Be sure to check the list of modems allowed by your provider FIRST.

I opted for the SB6141 DOCSIS because it is has the IPV6 addressing system, is backward compatible and its channel bonding technology to boost my bandwidth speed. The IPV4 addressing is used up (predicted to be end of this year) the internet community will be going to the new IPV6 addressing system.
Granted bandwidth is limited to the CAP set by your provider but your equipment plays a part. Before I bought this modem I was using one from Time Warner. My best speed test (using was 5.94 Mbps download and 1.92 Mbps upload. As of this morning, my latest test, shows 34.35 Mbps download and 1.92 Mbps upload. The upload limit is obviously kept by Time Warner to discourage uploading of large files (music libraries ,etc.).

It is built on the DOCSIS 3.0 standard (Data Over Cable Service Interface Specification). This is the latest version of DOCSIS. It also means that it uses channel bonding technology to gain access to the unused bandwidth capacity available on your network, in effect, boosting your bandwidth speeds.

The modem has 8 download and 4 upload channels. This means that the provider can (doesn't but could) offer data rates over 300 Mbps download and over 100 Mbps upload (at least not to home users). Each channel is capable of 40 Mbps, theoretically, for a maximum of 320 Mbps. But your provider "caps" the maximum at a much lower number. On a home system if you are getting 30+ Mbps you are doing extremely well.

I have 12 devices running off my home network so I am pleased with the results. I also bought a Cisco Linksys E2500 dual band router which basically places six on each band.

Just an FYI: You have to call Time Warner, go through the lengthy process of explaining that you have bought your own modem to replace their modem. You want to have it added to their network. You will have to provide MAC address and SERIAL number of your device, name of the modem including model number and then wait up to two days for them to make the switch. I know, ridiculous right?

Another FYI: The power light at top will be green, the second light blue, next two lights green and last light blinking orange (GigE-RJ45) unless you have Gigabit capability (offers up to 1 gig Mbps transfer speeds). You need a gigabit router, gigabit ethernet card to take advantage of the increased speed AND a provider that offers it. The GigE-RJ45 allows you to obtain Gigabit rates using the same 10/100/1000 ethernet Cat 5e or 6e cables instead of needing Fiber Optic cable. Its geared toward small to medium sized business owners.

Pros: offers AES enhanced AES encryption security, channel banding technology, GIGe-RJ45 port, compatible with EuroDOCSIS, has built-in filter to reduce interference from MoCa signals, easy to access menu, easy to set up and cost less than its predecessors.

I would definitely recommend this product and suggest upgrading to a dual band router.
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Showing 1-2 of 2 posts in this discussion
Initial post: Jun 7, 2013 11:30:37 AM PDT
Glenn says:
just an FYI for who it may concern: all DOCSIS 3.0 modems are mandated to support backwards compatibility with previous versions, it's part of the DOCSIS specifications, so it's not considered an *extra* feature because it's required by all manufacturers

In reply to an earlier post on Oct 2, 2013 5:29:50 PM PDT
correct, however, are the DOCSIS 2.0 forward compatible ? no need to answer
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