Cisco-Linksys CM100 Cable Modem with USB and Ethernet Connections

10 Review to this product

• 

  Mac User
  November 12th, 2010 on 10:06 pm

  Rating

  I got CM100 last week. I am living in Boston area and my ISP is Comcast. It is working excellent (DN 18~19Mbps, UP 7Mbps, by Speakeasy Speed Test), hooked up with my Mac PowerBook G4 (OS-X 10.4) through a new Airport Express, without any problem. The CD that comes with the modem contains softwares only for Windows, so I cannot use USB connection. But it does not matter for me because I only use Ethernet.

  The only problem I experienced was that when I first called the Comcast Customer Service and told them the modem’s MAC address and S/N, it was somehow registered wrongly and it did not work. (English is my second language and it may be because of my language barrier, but I am not sure…) Finally, I called a Tech to come over to my place and he found out that one digit of S/N registered to Comcast was wrong. Maybe he did something else to fix my problem, but I do not know. He told me that it was the only problem they found… So, be careful when you register your modem with your ISP.
  
• 

  A. Co
  November 12th, 2010 on 11:06 pm

  Rating

  My motorola modem suddenly died. Bought this as a replacement. Worked out of the box and setup with Comcast was less than 5 minutes. I did not even need to speak to a technical support.

  Highly recommended.
• 

  Robert S. Moskalik
  November 12th, 2010 on 11:56 pm

  Rating

  Linksys CM100 Cable Modem with USB and Ethernet ConnectionsAfter reading the discussions regarding this modem at Amazon.com, I purchased one to replace my rental unit from Charter. Not being a techie, I was a bit hesitant to do so. Well, was I surprised how easily it was to set up and get operational! After taking my router out of the loop, I followed the quick set up guide, connecting the modem directly to the computer thru the ethernet connection. Then, with the computer on, the Charter website came up and guided me thru the MAC address switch. Never did have to call Charter tech support. I was on the web within 10 minutes. My Linksys WRT54GL router accepted this modem without a glitch, although the Linksys Easy Setup Advisor apparently didn’t recognize the new system until I turned the computer off, then back on. Download speeds are about the same, upload speeds are about 4 times faster, according to the Speedtest.net results. To any Charter subscribers, at least here in Michigan, I highly recommend this cable modem. For any non techie, trying to get away from endless cable modem rental fees, as I was, I recommend this device for ease of installation.
• 

  Doyle W. Grizzle
  November 13th, 2010 on 12:49 pm

  Rating

  Linksys CM100 Cable Modem with USB and Ethernet ConnectionsI bought this item because my cable company was charging me monthly for theres…it cost over 8 years $700.00 to rent this..now that I own my own it will save me big bucks in the future. This is a great item, easily setup and works like a charm. I would suggest this; especially if you rent one from your cable company.
• 

  Susanna Hutcheson
  November 14th, 2010 on 6:49 pm

  Rating

  My Motorola Surfboard would come and go. It was not dependable. So I trotted down to OfficeMax and bought this Linksys modem. It was a snap it install. No software needed unless you use it with USB, which I don’t.

  I called Cox and gave them the numbers off the box and was online fast. No more being knocked off when I least expect it. In fact, I haven’t been knocked off at all.

  This is a great modem. I use it with a Linksys N router and Cox Communications.

  Not much you can say about a modem. It either keeps you online or not. This one does.

  Highly recommended.

  -Susanna K. Hutcheson
• 

  MotoPops
  November 18th, 2010 on 4:41 pm

  Rating

  Though there was nothing fundamentally wrong with my old Linksys BEFCMU10 V2, we were just not getting anywhere near the speeds claimed by Comcast on the eastside – only got up to 5000kbps down and 1100 up (speedtest.net) – eventually had a tech come out to check all connections and redo splitters – he recommended a CM upgrade tho I believed a CM is a CM… So we splashed out on the latest 4×4 inch baby from Cisco/Linksys.
  
  Installation and advising Comcast of the new MAC address took minutes tho one would think there would be an easier way than calling a call center?
  
  The change was nothing short of DRAMATIC. Our speedtest.net speed went to 31000kbps down and 3000 up (little less in evening). I can’t really see a 6-fold improvement in average browsing, but the local bottleneck is now gone and now dependent on the multiple websites and jump servers’ performance.
  
  As both old and new modems are docsis 2.0 I NEVER expected this kind of improvement and consider it $$ well spent. Btw, it’s matched with a D-Link DIR-655 wireless router. Another btw – there’s no direct link between the speedtest speed results and the actual kbps you see when you download a file – the latter depends on the website and other intermediate architecture. Last btw – the USB connection is Not for external storage like routers have, it’s an alternative way (to the ethernet connection) to connect the CM100 to your PC (havent quite worked that one out – guess there must be some mobile PCs that dont have CAT5 connections or can one use them simultaneously to 2 PCs?)
• 

  Tech Nut
  November 19th, 2010 on 8:07 am

  Rating

  I was looking to upgrade my old Linksys cable modem which was DOCSIS 1.0 compatible to a 2.0 or above version. I had my last Linksys modem for 5 years with no issues so I decided on the CM100 from Linksys.
  
  The installation was easy and with one phone call to Comcast to register my MAC address I was up and running. My download speed went from 6 Megibit to 22 and upload went from 1 to 6. Couldn’t have asked for more.
• 

  J. Perkins
  November 19th, 2010 on 9:16 am

  Rating

  Comcast in the San Francisco area is my cable and internet provider. I have rented their modem at $3 a month for many years.

  They did me a favor when it was announced that they would be increasing their modem rental to $5 a month!

  I bought the Linksys CM 100 Cable Modem, made by Cisco, after reading a review of how good it worked with Comcast, with faster speed than when using the Comcast modems.

  Installation was easy, BUT, remember to unplug your router if you have one, and plug the modem directly into your computer for installation. It would have been nice if the installations directions and CD which came with the modem made that very clear, because, even though I showed connectivity, when I called Comcast to give them the MAC number and get my new modem registered with them, I could not get a browser to open up.

  Comcast has always been very helpful if I have ever had a connectivity problem, and that was the first question they asked: Did I have a router?

  Once I disconnected the router and reinstalled the modem with the CD, which took 2 minutes, Comcast got me online and my browser came up right away, and I reconnected my router with no problems since.

  In less than a year at $5 a month my modem will have paid for itself with the one time cost. I am very happy with it, and thank Comcast for saving me money in this regard!
• 

  N. Schimpf
  November 19th, 2010 on 11:53 am

  Rating

  Since I got cable modem service six years ago I had stuck with the Motorola Surfboard line, which I will not criticize nor praise because both the box I rented from the cable company (and bought five times over) and the later 5100 model bought from a co-worker worked very well for me. But towards the beginning of October last year I started experiencing major problems staying online and after an epic back-and-forth with the cable company that took two months to solve, I thought it would be the cable modem that caused the problem. On a tech’s suggestion I decided to buy my own, but this time go with something different outside Motorola. I could’ve got a few generic brands, but doing research I came upon this model. Since I have a Linksys router, hey, it made sense to get the matching modem, right?

  At first, I still had those cable problems. It wasn’t the modem. Three weeks and one pole check later, I found out it was indeed something at the pole in the alley. Thus I bought this modem likely for nothing…

  Except that it works incredibly well since my connection has not wavered outside of cable maintenance periods ever since. Everything hums along, the modem isn’t in your face or in the way, propped up like a small book on the computer cart against the desk. It’s easy to maintain, the diagnostics screens are helpful yet simple, and since I bought a laptop a few months ago, it works very well with my home network. The modem also keeps cool, the AC adapter isn’t a brick and the lights on it are very easy to read.

  If you want a fine and dependable DOCSIS 2.0 modem, this is the one for you. The savings of modem rental work in your favor and the small size of the unit make it very convenient to have, and it’s reliability is impressive.
• 

  Head of Household
  November 19th, 2010 on 3:24 pm

  Rating

  When COMCAST decided to increase their cable modem rental fee 66% in November, to $5/month, I decided to do something about it. This $68 Linksys Cable Modem, Model CM100, is exactly what you need. You can check on the COMCAST website for a whole list of compatible modems. I decided on this one since I have a Linksys router (WRT54G).

  This installation is very simple. Remove the COMCAST modem. Someone in another review said you need to remove your router temporarily for this installation, so I did that and connected the CM100 directly to the ethernet connector on the computer. Once you did that, you need to call COMCAST and give them the S/N and the MAC Address, both of which are printed on the bottom of the Linksys CM100 unit. They enter your new info in their system and you are up and running. It really is as simple as that.

  You can then go ahead and reconnect your router. I found I had to power off/on the CM100, router, and computer and I no longer have to pay COMCAST monthly.