Forum Discussion

Sieyes77's avatar
Sieyes77
New Contributor
5 years ago

COX Gigablast wtih CM1000v2

Yesterday I bought a CM1000 and upgraded to COX Gigablast 1GB. As of this morning I am not getting anywhere near 1GB download speeds. I've contacted COX twice and both times they just had me do the standard unplug/plugin. They said they verified on their end that I'm getting 1GB so the issue must be my device. I contacted Netgear tech support and they essentially had me do a hard reset of the modem. This helped a little but speeds are still nowhere near 1GB. According to the speed test through COX's website, my download speed is barely holding between 300-400gbps. According to speedtest.net, I'm between 400-500gbps. I have the modem directly wired to my PC, no router or other devices connected. I've attached the modem connection info. 

 

Does anyone have any idea as to why the speed is so slow? Has anyone else who uses COX had a similar issue they were able to resolve?

Gigablast
netgear modem
  • Zurq's avatar
    Zurq
    Contributor II
    5 years ago

    cox's node cannot support those speeds, this has been proven countless times and paying for gigablast is just a waste I suggest downgrading to the 300 Ultimate.

    • Bruce's avatar
      Bruce
      Honored Contributor III
      5 years ago

      A few contributors have reported gigabit speeds.  Their questions were about other things Internet...such as pinging.

      • Zurq's avatar
        Zurq
        Contributor II
        5 years ago

        I wish cox was not bad sometimes.

  • Bruce's avatar
    Bruce
    Honored Contributor III
    5 years ago

    How many splitters do you have and what are their conditions?  Check behind your wall plate for any squirreled away spitters.  If you do have splitters, which output(s) on the splitter is connected to your CM?

    Your signals appear within specs.  Power on channels 1-20 seem kinda high compared to the tighter levels on 21-32.  It's just a comparison of Good vs Best.

    • Sieyes77's avatar
      Sieyes77
      New Contributor
      5 years ago

      I removed the wall plate and the cable line feeds into a plastic box that I cannot remove. Without being able to remove that box, I'm unable to see how exactly the cable is ran. However, you mentioned something that may be on the right track. I notice that my PC says I'm on a network labeled, "network 3." When i spoke with the tech support person, they said everything looked good on "network 1." Does this mean anything? If so, can Cox change the network they send the signal to or does this have to be done manually by a technician?

      • Bruce's avatar
        Bruce
        Honored Contributor III
        5 years ago

        A plastic box...inside your wall?  Could the box be a electrical PVC box or something else?  It's weird.

        Your PC...I'll assume is Windows 10.  Windows 10 creates firewall profiles for "different" networks on the same Ethernet adapter:  Network 1, Network 2, Network 3, etc.  It renames them perhaps because something renegotiated or something.  It's weird too but normal.  As Kevin noted, however, Cox would not be able to observe your network names.

        My biggest concern was just any faulty splitter.

  • bearone2's avatar
    bearone2
    Contributor III
    5 years ago

    is the cm1000 added to the panoramic modem/router??

    • Bruce's avatar
      Bruce
      Honored Contributor III
      5 years ago

      The Netgear CM1000v2 is approved.  It's not a router.

    • Sieyes77's avatar
      Sieyes77
      New Contributor
      5 years ago

      No, I do not have the panoramic modem/router.

      • bearone2's avatar
        bearone2
        Contributor III
        5 years ago

        i'm guessing that providing your own modem is the problem.

      • Sieyes77's avatar
        Sieyes77
        New Contributor
        5 years ago

        Thank you for replying but none of the information you provided had any impact on the speed. Internet is still struggling to run at 300mbps consistently. There has to be some other issue other than the modem and/or my devices which is what the tech support rep. decided the problem was when rebooting the modem didn't work.