Forum Discussion

Jaeger's avatar
Jaeger
Contributor
2 years ago

Port Forwarding

Just out of curiosity, does Cox currently allow Port Forwarding or is it blocked by the ISP? I have opened a number of ports through my third party router and Windows Firewall as necessary to tempora...
  • WiderMouthOpen's avatar
    WiderMouthOpen
    2 years ago

    +1 for modem and router you have. Cox does not block port forwarding. See thread here.

    ::edit:: Do you still have the MB8600? If so, try bypassing the router and connect direct to the MB8600 with ethernet and the power cycle the MB8600 to renew DHCP. See if the ports are open then. That will see if your firewall on your OS is open.

WiderMouthOpen's avatar
WiderMouthOpen
Esteemed Contributor
2 years ago

+1 for modem and router you have. Cox does not block port forwarding. See thread here.

::edit:: Do you still have the MB8600? If so, try bypassing the router and connect direct to the MB8600 with ethernet and the power cycle the MB8600 to renew DHCP. See if the ports are open then. That will see if your firewall on your OS is open.

  • Jaeger's avatar
    Jaeger
    Contributor
    2 years ago

    Glad to see you're still here providing support. You've helped me immensely in the past! I do indeed still have the MB8600 and I currently have an ASUS AX-3000 for a router at this address. It's strange because this used to function perfectly fine with no issues at all. When I opened ports for whatever reason and checked them, they came back as open. For what it's worth I did also try disabling the router and windows firewalls and even temporarily using the DMZ function within the router to see if that made any difference. Even with all of that the ports were showing as closed. I did also verify my public IP and WAN IP were the same so I suppose I can assume this isn't a CGNAT issue.

    In any case I did as you suggested and connected straight to the modem, bypassing my router entirely. The ports are still coming back as closed via various port checking websites. I tried again after totally disabling Windows Firewall (private, Public, and Domain) and even then they still show up as closed.

    Some potentially relevant information: I recently moved to Ohio and utilize Spectrum internet there. I continue to pay for a utilize a Cox account for my parents who are the ones using the MB8600 here in Virginia. Back in Ohio, I was successfully Port Forwarding with the same make and model of router (but not the same EXACT router) and the same laptop I am using now during this visit. Therefor I am at the very least sure my laptop and firewall are not to blame for this issue.

    • WiderMouthOpen's avatar
      WiderMouthOpen
      Esteemed Contributor
      2 years ago
      bypassing my router entirely. The ports are still coming back as closed via various port checking websites

      If that is the case, then you can rule out the router, which is a good thing. Try listing the ports on your computer by Windows key + R > CMD > Netstat -ano > Left click to select the data and enter to copy it. Then paste it into wordpad and CTRL+F to find the port. 

      Also, do you have any A/V other then Defender? If so, try disabling/uninstalling it.

      • Jaeger's avatar
        Jaeger
        Contributor
        2 years ago

        The two ports show up in the UDP section of netstat but they are not appearing in the TCP section. I do have Avira Antivirus and have tried disabling that during these tests as well.

    • ExtraChrispy's avatar
      ExtraChrispy
      Contributor III
      2 years ago

      A few more thoughts to consider,

      If you connected your PC directly to the modem and the ports still show closed despite the firewall being turned off, that suggests the application isn't listening.  Your public IP would have also changed when connecting directly to the modem so make sure you aren't forgetting to account for that in your testing.