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Forum Discussion

tonisama's avatar
tonisama
Tutor
Jun 04, 2020
Solved

CM500 Modem gets half speed when connected to router but full speed when connected to PC

I recently purchased a used CM500 to replace a Mediacom-provided unit that we rented.  We subscribe to 100/10 internet service and have always gotten full speeds.   The CM500 was provisioned and I ...
  • FURRYe38's avatar
    FURRYe38
    Jun 05, 2020

    I'd try a different modem. Maybe a CM600/700 or CM1000 if these are supported by your ISP. 

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jun 05, 2020

Did you power OFF both CM modem and router for 1 minute then back ON with the modem first then router? 

What is the mfr and model# of the router your using? 

  • tonisama's avatar
    tonisama
    Tutor
    Jun 05, 2020

    I just tried and it had no effect. 

     

    The one that I use currently is a TP-Link Archer A6 AC1200.  I also have an old Netgear WNDR3700v2 N600 which I just tried and it also has the same issue.

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Jun 05, 2020

      I'd try a different modem. Maybe a CM600/700 or CM1000 if these are supported by your ISP. 

      • tonisama's avatar
        tonisama
        Tutor
        Jun 05, 2020

        Indeed.  I already ordered a replacement.  I'll report back when it's up and running.