Customer Ratings & Reviews

Solid product. I don't think it has ever needed to be turn off and on or dropped internet.

This modem worked fine for the first (approx.) 3 months. Then it behaved erratically for a few weeks and required numerous resets. It finally failed about 4 months after purchase. It would power on, but no upstream or downstream connection even though the link light was always on. I went back to Netgear.

This is really good modem especially keeping in mind cutting $7 RCN equipment fee.

works well; i had to both use my browser AND call comcast it get it associated with my account

It's great wish it had phone ports for the VOIP. Thank you

It worked great for us and our internet was always good

I like the fact that it stays cool even with two people gaming and a third streaming videos.

This is a perfect addition to my home .. sound clarity and crisp is nice...

I needed to upgrade to a DOCSIS 3.0 modem, this model was the best choice.

I was hoping for a significant speed upgrade from my 4 x 4 modem. I got a minor speed upgrade of around 5% but not 8 times faster than advertised. Registering the modem was a hassle because i have an X1 cable box. Admittedly this was an Xfinity issue but just know that there could be issues getting the modem activated. Bottom line is i should have just kept my older modem.

Very reliable I use a lot of WiFi, it never skips a beat.

This modem was originally recommended by Comcast to use. Modem worked great till 3 days ago. After 2 calls to Comcast, I finally got a technical support person to tell me the real answer. Comcast has put this modem on end of life because the firmware on it is very easy to hack. So I guess I will be shopping for a new modem.

I bought a SB6141 two years ago after my prior Motorola modem began having issues. Seems the last two owned have not held up. The first one of the three was great and only began to fail when technology outpaced it, otherwise it was still purring along. When first installed the SB6141 ran great but after 1 year I noticed intermittent disconnects and reboots. The situation slowly worsened over the next year until near complete failure. I initially thought it was my Netgear router being that it was older than my modem but that was not the case. Cable technician came out and checked lines, tweaked a few things and all was perfect, Not. What I began to figure out was that after sitting for awhile the modem would work but as soon as a load of internet requests was made it would cascade into full failure. At it's worst I could only get 1 or 2 web pages to load before it lost connection. Once I replaced it with a Zoom 5341J all is well in the home and so far so good. See ya Motorolla I refuse to waist any more money.

"Internet service drops at random and modem gets stuck in update mode. Up and Down lights flash blue, no way to reset." mine failed after two weeks , I had it replaced and the second one lasted one week.. Same problem. Returned ... I will stay away from this junk

Modem is small and nice design. I dislike the light, it is too bright.

Product does what it is supposed to. No big challenges during setup. If needed, worth the buy.

It works and I have great coverage for a two story 2000 sqft house

Comcast in Milwaukie Oregon will no longer activate the 8 channel modem saying it is now "end of life". We are only paying for the lowest tier and don't need more than 25 MB/s. We had to buy the 16 Channel model.

Eliminate a monthly fee with Comcast and purchase this instead

Modem reboots randomly, with loss of signal. few time had to reboot modem due to loss of signal. returned and bought netgear modem and have not encountered any problems since.