Can't open specific ports on my Mac

Discussion in 'Mac OS X Server, Xserve, and Networking' started by Demigod Mac, Dec 15, 2010.

  1. macrumors 6502a

    Joined:
    Apr 25, 2008
    #1
    Trying to open ports to allow hosting Killing Floor games, but no matter what I do, it doesn't want to open them.

    The following ports are used by the game:
    * Linksys E1000 router w/ latest firmware installed
    * Computer is assigned a static IP address (wired connection)
    * Port Forwarding and Port Range forwarding have been configured
    * Have tried DMZ to my Mac, no difference
    * Mac OS X Firewall is disabled
    * Router firewall is disabled
    * Firewall On with the app on the allow list isn't making a difference

    This web-based tool and Network Utility keep showing the required ports as "closed" even though I have set up port forwarding to my Mac's IP and there are no firewalls in place.
    http://www.canyouseeme.org/

    Here's the thing: if I enable something like Web Sharing (port 80) in Sharing, it opens and closes the port just fine, and those two utilities show the port's status properly.

    But no matter what I do, firewall on or off, I can't get ports 7707-7717 and the others to become "open" on my Mac.
     
  2. thread starter macrumors 6502a

    Joined:
    Apr 25, 2008
    #2
    Follow up:

    I think I narrowed this down to the router.

    Plugging the modem into the computer directly- it works! Friends can join my game without an issue.

    Puzzling, to say the least.
     
  3. macrumors 68030

    Les Kern

    Joined:
    Apr 26, 2002
    Location:
    Alabama
    #3
    try enabling the firewall and opening the ports manually? Just something to try.
     

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