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Forum Discussion

Gopal12345's avatar
Gopal12345
Aspirant
Aug 01, 2019

CM400 does not accept serial number

CM400 has been working for over a year. Today I had to disconnect it to move and reconnect. It will not accept my admin password (possibly i forgot). But the reset option asks for serial number; I gave the number on the modem, but it says not the correct serial number. Doublechecked it.  Any ideas?

5 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    Is there a reset button on the modem some place? 

    • Gopal12345's avatar
      Gopal12345
      Aspirant

      good thought; there is a small hole. I pushed a pin in - felt like a reset button. But it still didnt work; i tried the default userid and password that came witht he unit - assume as any: admin and password

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User

        How long have you had the modem? 

        Possible the modem is faulty and needs to be replaced.