ozchorlton
Level 1 (0 points)

Q: Hidden IP on Mac Mini

I have a Mac Mini running Snow Leopard, if I set it to DCHP on the wired connection, it does not get an IP, but says that it is running the same ip as another system.

The wireless works fine. 

I can get the wired connection to use DHCP with static IP, but not normal DHCP.

 

I tried reimaging the machine, but the problem came back, leading me to a hardware issue?

 

Everyting else on the network works fine, just this one Mac Mini has an issue.

Mac mini, Mac OS X (10.6.8)

Posted on Sep 9, 2013 9:46 PM

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ozchorlton

Q: Hidden IP on Mac Mini

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  • by Joe Bailey,

    Joe Bailey Joe Bailey Sep 10, 2013 8:21 AM in response to ozchorlton
    Level 6 (12,217 points)
    Sep 10, 2013 8:21 AM in response to ozchorlton
    1. What is your network configuration?
    2. Are there any other devices connected to the router by wire?
    3. What is the make and model of the router are you using, and are you sure it has the latest frimware revision from the manufacturer?

  • by ozchorlton,

    ozchorlton ozchorlton Sep 10, 2013 4:27 PM in response to Joe Bailey
    Level 1 (0 points)
    Sep 10, 2013 4:27 PM in response to Joe Bailey

    Hi,

     

    This is a business network, the other 50 devices get DHCP from the Apple server with no issues.

    The switchs have the latest firmware.

     

    I have another Mac Mini, with the same image on it, that works fine, on the same port.

     

    This Mac Mini appears to be retaining an old IP address, even after reimaging.

    How can the hardware retain an IP address, and how can I get rid of it?

  • by BDAqua,

    BDAqua BDAqua Sep 10, 2013 5:06 PM in response to ozchorlton
    Level 10 (123,860 points)
    Sep 10, 2013 5:06 PM in response to ozchorlton

    Might try this...

     

    Make a New Location, Using network locations in Mac OS X ...

     

    http://support.apple.com/kb/HT2712

     

    10.5, 10.6, 10.7 & 10.8…

     

    System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.

     

     

    10.5.x/10.6.x/10.7.x/10.8.x instructions...

     

    System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.

     

    The interface that connects to the Internet should be dragged to the top of the list.

     

    Is there a Router involved that might have a limit of 50 connections? Or a range of only 50?

  • by ozchorlton,

    ozchorlton ozchorlton Sep 10, 2013 5:50 PM in response to BDAqua
    Level 1 (0 points)
    Sep 10, 2013 5:50 PM in response to BDAqua

    Tried that, but no luck, the error stays :-(

     

    DHCP with manual address works fine, and the system gets all of the other DHCP details, (such as subnet mask and router).  The issues is that the system remembers the ip.

     

    Switchs and router appear to be fine.

     

    How do I see if any ip addresses are set to a mac address in DHCP on the Mac server?