Conflicting IP Address I Think

Discussion in 'Mac Basics and Help' started by Robster3, May 25, 2013.

  1. macrumors 68000

    Joined:
    Dec 13, 2012
    #1
    Hi,
    I had message come up on my mbpr saying another is using your IP address. It is connected with ethernet. Now my imac on wifi and my sonos rdio won't connect. Macbook and iPad/iphone all work on wifi. I have reset modem powered off everything but no luck.
    Any ideas?
    Cheers
     
  2. macrumors 6502a

    monkeybagel

    Joined:
    Jul 24, 2011
    Location:
    United States
    #2
    If there is a conflict, the first mode of order is to see if you can get them to get along. Conflict will likely not solve anything. They have to work this out.

    Do any of your devices have static IP addresses on them? Any printers, other computers, etc.? It sounds like a device owns an IP that is in the DHCP range. You will need to look at your router configuration and perhaps change the range after looking at the device in question.
     
  3. thread starter macrumors 68000

    Joined:
    Dec 13, 2012
    #3
    All of my macs, idevices are working on wifi perfectly, just can't play rdio on my Sonos system. Says unable to play music.
     
  4. macrumors 603

    justperry

    #4
    Again, you should look inside the router or the Sonos for resolving this, all devices on your network should be set to DHCP, in the router make sure there are sufficient IP addresses available, it might be set to only a short range of IP addresses.
    Example, it only gives out a maximum of 10 IP addresses if it is set that way, for instance 192.168.1.2 to 192.168.1.11, if you then connect more than 10 IP addresses you might/will get conflicts.
    Look if the Sonos setting is set to DHCP.
     
  5. thread starter macrumors 68000

    Joined:
    Dec 13, 2012
    #5
    In the net gear genie it shows 15 devices including the Sonos ones. I can play music on this iPad/iphone. just can't play rdio or radio. How do i set to DHCP?
     
  6. macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #6
    Sonos won't help you wrt IP Addreses. They all look to the DHCP server to provide these. if you have a Netgear router, then check the assignments there.

    There is a simple way to check this. Turn everything off that gets an IP address - yes, everything.
    Then turn them on in this order :

    1. Router or modem and then router.
    2. Switches
    3. WiFi access points
    4. LAN connected items
    5. WiFi connected items.

    Wait 2 mins between each step for boot up to complete.

    Before you do that, try and list the IP addresses of all connected devices.
    Then check the router's assignments of IP addresses. How long is the lease time ? It should be a day, not longer. Have you any reserved IP addresses ?

    After all this compare the list of IP addresses with the previous list. What's changed ?
     
  7. macrumors 604

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #7
    and hope the router doesn't have a limit to the number of devices that can connect.
     
  8. macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #8
    Have you ever seen that ?
     
  9. macrumors 604

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #9
    nope...just wondering if it was possible, especially for a home router.
     
  10. macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #10
    Don't think it is. All subnets can do up to 255 or 256 IP addresses.
     
  11. macrumors 604

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #11
    I wasn't thinking in terms of the subnet addresses, but rather in some kind of artificial restriction set up by the ISP.
     
  12. thread starter macrumors 68000

    Joined:
    Dec 13, 2012
    #12
     
  13. macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #13
     
  14. thread starter macrumors 68000

    Joined:
    Dec 13, 2012
    #14
     
  15. macrumors 65816

    drsox

    Joined:
    Apr 29, 2011
    Location:
    Xhystos
    #15
     

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