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drstephennix's avatar
drstephennix
Aspirant
Feb 11, 2021
Solved

CM1200 Cable Modem with Asus RT-AX82U

I have the setup in the subject line.  I came home one day and internet was completely down.  restarting didn't work and after talking to Asus support.  I had to make new 2.4 and 5g networks.  I've got them both up and running again, but wifi is slower now.  I have Xfinity.  I would like details on how to ensure the setup between the two is optimized for speed.  I can log into my router easily to adjust settings, but the modem, I can't

  • plemans's avatar
    plemans
    Feb 11, 2021

    If the modem is putting out the full speeds you pay for, then you should be checking with asus support/community on its router. 

    The modem doesn't do much other than provide a connection to the router. And if its hitting its speeds, check on the router. 

4 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User

    there's not much to adjust in the modem. 

    What speeds do you get hardwired into the modem?

     

    • drstephennix's avatar
      drstephennix
      Aspirant

      400mbps and I just did a speed test on my work computer and getting a little more than that.  wifi seems slower though

      • plemans's avatar
        plemans
        Guru - Experienced User

        If the modem is putting out the full speeds you pay for, then you should be checking with asus support/community on its router. 

        The modem doesn't do much other than provide a connection to the router. And if its hitting its speeds, check on the router. 

  • > [...] I came home one day and internet was completely down. [...]

     

       Thanks for that detailed description of the observed behavior and the
    LED indicators on those devices.

     

    > [...] I had to make new 2.4 and 5g networks. [...]

     

       "I had to do this" usually means, "When I did this, something
    improved."  It's far from proof that "this" was actually required.

     

    > [...] I've got them both up and running again, but wifi is slower now.
    > [...]

     

       "slower" than what?  A Web search for terms like, say:
          slow Wi-Fi
    should find any number of potential causes (poor band/channel choice,
    and so on).  What abut wired speeds?

     

    > [...] I can log into my router easily to adjust settings, [...]


       How, exactly?

     

    > [...] but the modem, I can't

     

       "can't" is not a useful problem description.  It does not say what
    you did.  It does not say what happened when you did it.  Or what you
    actually want to do.  As usual, showing actual actions (commands) with
    their actual results (error messages, LED indicators, ...) can be more
    helpful than vague descriptions or interpretations.

     

       If your actual goal is access to the management web site of a DOCSIS
    modem, then you might try reaching it at a special IP address,
    "192.168.100.1".

     


    > [...] wifi seems slower though

     

       "seems?  You can't measure it?