Forum Discussion

j9j92's avatar
New Contributor
4 years ago

Internet is super unstable last 3 weeks

Speed test result is inconsistent last 3 weeks. Even speed test result shows in good condition, internet keeps dropping. Tried reset Modem few times manually but no improvement. Especially it gets worse when I play online games. WIFI is okay but ethernet connection is totally inconsistent. Should I take the modem to store and replaced? 

3 Replies

  • networker55's avatar
    New Contributor

    Same here.

    This issue started a few days ago.

    When using WI-FI, all is smooth. But ethernet ports just can't load webpages. now I can't use my gaming PC!

    a factory reset didn't do anything.

    What is your firmware version on the modem? mine is CGM4140COM_4.6p9s1_PROD_sey

    I'm assuming some firmware upgrade broke the ethernet ports of the panoramic modem.

    Wireshark capture shows TCP duplicated packets. I just gave up on trying to fix it. using only wi-fi for now, until I change carriers.

    • JonathanJ's avatar
      Former Moderator

      I apologize for the frustration you’ve been experiencing with your internet and like to investigate. If you can email your full name and the street address on your Cox account to Also, include a link to this thread.

      Jonathan J
      Cox Moderator