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Forum Discussion

STW18's avatar
STW18
Aspirant
Sep 13, 2018

Netgear CM400 Modem Worked with Spectrum now won't work with WOW

I used a CM400-1AZNAS modem with Sprectrum. I have switched to WOW. The Wow technician said that the modem seems to have gotten an update from Sprectrum that keeps it from working on WOW. A factory r...
Firmware
vkdelta's avatar
vkdelta
NETGEAR Employee Retired
Sep 13, 2018

Most likely it is because Modem is locked to IPv6 and WoW does not support IPv6.

STW18's avatar
STW18
Aspirant
Sep 14, 2018
Is there a way to unlock it?
  • vkdelta's avatar
    vkdelta
    NETGEAR Employee Retired
    Sep 15, 2018

    Pls PM me.

    • Bux1234567's avatar
      Bux1234567
      Aspirant
      Jan 29, 2019

      I have had the same problem. How can the CM400 be unblocked after my using it with Spectrum and now that I want to use it with WOW!?

    • Tomasme's avatar
      Tomasme
      Aspirant
      Mar 02, 2019

      I am having the same problem. WOW technician was at my home today, but he couldn't get my CM400 to work since it had been used with Spectrum service (locked on IPv6). Can Netgear help with this? How do we unlock the modem to work with WOW? This is a modem I had purchased from Amazon, and I'm very unhappy that Spectrum locked it.