cisco router and home sharing

Discussion in 'Mac Apps and Mac App Store' started by njain, May 20, 2012.

  1. njain macrumors member

    Aug 12, 2011
    I recently switch to a cisco 800 series router for my house. Ever since I did that, I have been unable to use home sharing between my mbp running lion and a computer on windows 7. I know it has something to do with the router because on a network at my school I can use the remote app through home sharing perfectly fine. Any suggestions?
  2. charlien macrumors 6502

    Jul 3, 2006
    It probably isn't an issue with the router but the fact you changed routers. Most home routers are the DHCP and DNS servers. I suspect that when installed the new router your IP addresses changed.
  3. JediMeister macrumors 68040

    Oct 9, 2008
    The issue is with the firewall on the Cisco router. More than likely is blocking port 5353, which according to this article, is used by Home Sharing. You need to open the port to allow communication between all your devices. The network admin at your school may have opened that port for some other service, which is why it works there.
  4. njain thread starter macrumors member

    Aug 12, 2011
    ok, and how do I go about opening up this port?
  5. throAU macrumors 601


    Feb 13, 2012
    Perth, Western Australia
    The router by default will not be blocking hosts on the same LAN from talking to each other. if you're on the same LAN/subnet, the packets won't even be hitting your router (or at least, not it's routing engine) - they'll be getting dumped "on the wire" directly and the switching module, wireless AP, etc will relay them directly to the other NIC.

    My money is on the changed IP address.
  6. njain thread starter macrumors member

    Aug 12, 2011
    what does the changed ip address mean? all the computers are on the same network
  7. mrlhxc macrumors member

    Aug 25, 2010
    I put money on ports

    I don't see how changing an IP address would be an issue. If they are on the same network ( same subnet ) they should be fine. The Home Sharing protocol should be smart enough to scan or w/e for the computers or devices anyway. I had an issue with my Windows 7 box not talking to my iPhone for the "wireless sync" and it was related to the ports issue.

    As JediMeister said it could be related to ports 5353 being blocked on your router. Look up how to configure your router. It probably has a management interface accessed by the web. You also might be able to connect to it using SSH. You'll have to find the documentation that came with the router or look on cisco's website for more information to specifically connect and change settings with your router.

    The Cisco 800 Series Router may be overkill for your house though unless you have 20-50 computers and need VPN functionality. What router did you used to have?

    I have a new Apple Extreme Base Station and love it.

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