rajjejosefsson

Q: Can't open any ports on my Time Capsule

I can't open any ports on my TC , have now even tried to connect it directly to my ISP network as my provider wanted me to try, but It still says my port are off, What am I missing?  My internet works fine. Have router set as DHCP and NAT and connecting with DHCP. And have selected the ip of my connection to the portforward. And my provider told me that they don't block anything either.

Posted on Jun 20, 2016 3:49 AM

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Q: Can't open any ports on my Time Capsule

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  • by Tesserax,

    Tesserax Tesserax Jun 20, 2016 10:55 AM in response to rajjejosefsson
    Level 9 (53,940 points)
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    Jun 20, 2016 10:55 AM in response to rajjejosefsson

    What are you using to check port status? Are you doing so from within your local network or from a remote location? What is the make & model of the Internet modem that you have your Time Capsule directly connected to by Ethernet? Finally, what exact version of the Time Capsule do you have?

     

    To double-check that you have configured your Time Capsule properly for port mapping, please take a look at this AirPort User tip.

  • by Bob Timmons,

    Bob Timmons Bob Timmons Jun 20, 2016 11:33 AM in response to rajjejosefsson
    Level 10 (104,968 points)
    Wireless
    Jun 20, 2016 11:33 AM in response to rajjejosefsson
    Have router set as DHCP and NAT and connecting with DHCP

    Please make sure that you do not have a Double NAT error on your network, which will make port forwarding difficult to impossible to configure correctly.

     

    To do that, open AirPort Utility on your Mac.....(Finder > Applications > Utilities > AirPort Utility)

    Click on the picture of the TC, and look at the smaller window that appears

     

    Make sure that there is NOT a Double NAT error next to the Status listing.

     

    Also, please keep in mind that most "port checking" utilities are basically worthless. By that, I mean that when I have Port Mapping set up so that I can access my TC remotely, one of the requirements is that Port 548 must be "open". I just checked using three different popular utilities and found that each one was wrong....indicating that the port was closed when I know it is open, because I am currently connected back to the TC from a remote location as a test.

  • by rajjejosefsson,

    rajjejosefsson rajjejosefsson Jun 20, 2016 12:57 PM in response to Tesserax
    Level 1 (8 points)
    Wireless
    Jun 20, 2016 12:57 PM in response to Tesserax

    I have the Time Capsule from 2014-2015 with AC, don't have the model number now but thinks thats enough, and version 6.3.6. I'vent done the step 1 from what you linked, is it necessary when I need to forward port 80?

  • by rajjejosefsson,

    rajjejosefsson rajjejosefsson Jun 20, 2016 12:59 PM in response to Bob Timmons
    Level 1 (8 points)
    Wireless
    Jun 20, 2016 12:59 PM in response to Bob Timmons

    No no double NAT here, I've done the check from the network utility and with some external sites, but as you say that may show the wrong answer.

  • by Tesserax,

    Tesserax Tesserax Jun 20, 2016 4:41 PM in response to rajjejosefsson
    Level 9 (53,940 points)
    Wireless
    Jun 20, 2016 4:41 PM in response to rajjejosefsson

    No problem, I understand that you have a 1st generation 802.11ac Time Capsule... and you are using the latest version of the AirPort Utility (6.3.6) on your Mac.

    I'vent done the step 1 from what you linked, is it necessary when I need to forward port 80?

    It shouldn't be, but if your are expecting remote users to access your local network on port 80, this port is commonly used for the HTTP protocol and may be blocked by your ISP. Typically this would happen, for example, if you are trying to run a web server on your local network and only have consumer-grade Internet service from your ISP.