Windows 8 and 8.1 Forums


router not passing port scan after opening port

  1. #11


    Posts : 24
    win 8.1


    just a quick update i have not changed anything requarding outbound ports, i am trying to run a minecraft server and the only port it uses is 25565 from numerous searching ive done online. i do have acces to my router and here are the logs. i may need to try to run the server again because when i did a search for the port number the logs only had one result. also is there a different way to check ports other than online scanners? also needlessto say ive tried this with comodo and windows firewall turned off.
    router not passing port scan after opening port Attached Files

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  2. #12


    San Jose - California
    Posts : 2,847
    8.1x64PWMC Ubuntu14.04x64 MintMate17x64


    For testing purpose. Why don't you try with regular Windows Firewall instead of Comodo. Third party Firewall is only good for controlling outbound
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  3. #13


    Posts : 24
    win 8.1


    Quote Originally Posted by topgundcp View Post
    For testing purpose. Why don't you try with regular Windows Firewall instead of Comodo. Third party Firewall is only good for controlling outbound
    yeah i use comodo to controll outbound of some software otherwise i'd use windows firewall.
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  4. #14


    Hafnarfjörður IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there

    For TESTING it's usually best to turn the entire wretched thing (firewall) OFF.

    My experience - especially with my background as an Engineer is to test ONE THING at a time and then gradually add the other pieces --if you test the whole kybosh together it's hard to diagnose the cause of the problem - whether it's the firewall, the router or Windows itself or even the interaction between all 3.

    I've seen it so many times where people make several changes AT THE SAME TIME to their system and then whine "It doesn't work - what do I do now" - and of course they haven't taken a backup either !!!.,

    Cheers
    jimbo
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  5. #15


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Get rid of Comodo, turn off Windows Firewall, since you are behind a router. Your issue may be that the port is being stealthed by the router, is why it shows closed. If the router has UPnP enabled. It will trigger the port as needed, when queued by the application to open and close the port.

    What does the GRC.com Port scan show? Now a lot of ISP's are block any type of P2P & Torrent software, so that it does not steal bandwidth from other uses.
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  6. #16


    Posts : 24
    win 8.1


    Quote Originally Posted by broe23 View Post
    Get rid of Comodo, turn off Windows Firewall, since you are behind a router. Your issue may be that the port is being stealthed by the router, is why it shows closed. If the router has UPnP enabled. It will trigger the port as needed, when queued by the application to open and close the port.

    What does the GRC.com Port scan show? Now a lot of ISP's are block any type of P2P & Torrent software, so that it does not steal bandwidth from other uses.
    ive turned both off and run the server so the port will be triggered and still no luck :/ i would like to use a different port scanner but i wasnt able to locate the port scanner on the grc site. can you give a direct link.
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  7. #17


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Services, then Shieldsup!, then click on Proceed, then choose "All Service Ports" at http://www.grc.com . You may have the port setup off somewhere. You can go through a double check with the info at Free Help Forwarding Ports - PortForward.com .
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  8. #18


    Posts : 24
    win 8.1


    Quote Originally Posted by broe23 View Post
    Services, then Shieldsup!, then click on Proceed, then choose "All Service Ports" at http://www.grc.com . You may have the port setup off somewhere. You can go through a double check with the info at Free Help Forwarding Ports - PortForward.com .
    got the response that "THE EQUIPMENT AT THE TARGET IP ADDRESS
    DID NOT RESPOND TO OUR UPnP PROBES!" im assuming this means that this router is blocking access to ports on its own without me using any firewall. also i used that guide to check i portfowareded correctly before making this thread
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  9. #19


    Posts : 24
    win 8.1


    heres a netstat i did, 25565 is listenning on tcp
    router not passing port scan after opening port Attached Files
      My System SpecsSystem Spec

  10. #20


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Quote Originally Posted by ashtreylil View Post
    Quote Originally Posted by broe23 View Post
    Services, then Shieldsup!, then click on Proceed, then choose "All Service Ports" at http://www.grc.com . You may have the port setup off somewhere. You can go through a double check with the info at Free Help Forwarding Ports - PortForward.com .
    got the response that "THE EQUIPMENT AT THE TARGET IP ADDRESS
    DID NOT RESPOND TO OUR UPnP PROBES!" im assuming this means that this router is blocking access to ports on its own without me using any firewall. also i used that guide to check I port fowarded correctly before making this thread
    No it means that your router is doing its job as it should be. It means that UPnP is not enabled as it should be.

    You could try the Trigger option and see if that works, vs. doing the complete open the doorway for the port on the router.
      My System SpecsSystem Spec

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router not passing port scan after opening port
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