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My ISP is Mediacom and since I began using them I have had the same RCA / Thomson 425 Modem. This was years ago and during that time I have made the upgrade to "wireless network", 802.11g to 802.11n (with my wireless router) and changed my subscription to the Max service they offer. Is my modem holding me back from the best performance I could be achieving? I am reading about new faster, speedier modems. If so, any thoughts on what types of modems will give me the best service? It is a DOCSIS 2.0 and I now see DOCSIS 3.0 modems. Thanks

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Firstly it makes no difference if you have a wireless network on 802.11n unless all the devices on the network are using 802.11n adapters. This means if you have a router or a wifi phone working on basic 802.11g (55mbs data) the whole network will run at the speed of the slowest device.

Now about the Thomson modem DCM425 and the ISP service. The maximum speed Docsis 2.0 protocol can support is 38mbps. The maximum Docsis 3.0 offered in US is around 120mbs. The Max service offers about 20mps (see link) which means you are within the capacity of the cable modem.

Hope this helps.


Posted on Nov 15, 2010

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  • Sam Nov 17, 2010

    I would appreciate if you give me some reason as to why you thought my solution was not adequate. I thought I answered all parts of your query. It is helpful if you give a reason for providing the 2 finger rating. If it has occured due to some error than I would appreciate if you post a comment and I can get it fixed.

  • prioritycont Dec 03, 2010

    It should have been a rating of 1 finger in all honesty.
    First, I was not asking about wireless network protocol. But if I was you totally blew it. The whole network will not run at the speed of the slowest device.
    I also didn't need a link to an add for the service I have. I know what my provider claims the speeds are.
    No info on subject of question.

  • Sam Dec 04, 2010

    I have no idea what you are talking about.



    I answered the questions you had asked and clarified your cable modem was capable of going higher speed compared to the service your ISP is providing. Hard to make recommendation if I don't know which area you are located in. In addition, I clarifed for you that having 802.11n wireless had no affect if the devices were not 802.11n compatible. If you can prove to me that the wifi network does not come down in performance if all the devices are not using the same protocol then do so.



    Thanks for taking the time to clarify the rating you gave..

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