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  1. #1
    code777
    Guest
    Local host name Already in Use???
    Hey guys, when I woke my iMac up just a few seconds ago I got this msg.

    "This Computer's local hostname "****computer.local" is already in use on this network. The name has been changed to "****-2.local" automatically

    To change the local hostname open System Pref. and click sharing. Then click edit and type the name in the local hostname field."

    Why would this happen?

  2. #2

    iWhat's Avatar
    Member Since
    Nov 11, 2004
    Location
    Toledo, Ohio
    Posts
    5,736
    Specs:
    Macbook, iMac G5, iPad, iPhone 4, iPod (MANY)!
    You might have two computers named the same thing. It's telling you to change the name of one of your computers on your network. And you can easily do that in the Prefs. under Sharing. :cool:

  3. #3
    code777
    Guest
    oh ok. i took the pic down just because

    so is it because i have my iBook on a wireless network? Funny before Tiger it never said this...

  4. #4

    iWhat's Avatar
    Member Since
    Nov 11, 2004
    Location
    Toledo, Ohio
    Posts
    5,736
    Specs:
    Macbook, iMac G5, iPad, iPhone 4, iPod (MANY)!
    Quote Originally Posted by code777
    oh ok. i took the pic down just because

    so is it because i have my iBook on a wireless network? Funny before Tiger it never said this...
    With my two macs running Panther, I mistakenly did the same thing, but my macs seemed to only connect to the network every other day. It's was a pain. Then, I was like, oh duh, I have two computers named the same thing, so I thought that must be the problem and the sharing option was the quickest fix for that.

  5. #5

    Aptmunich's Avatar
    Member Since
    Mar 09, 2004
    Location
    Munich
    Posts
    9,073
    Specs:
    Aluminium Macbook 2.4 Ghz 4GB RAM, SSD 24" Samsung Display, iPhone 4, iPad 2
    Did you transfer your users accounts from the one computer to the other when you installed Tiger?

    That happened at work: When I transfered the user accounts & network settings they all had the same IP address, so I just manually changed them again...

  6. #6


    Member Since
    May 18, 2011
    Posts
    2
    same question but only one computer
    Quote Originally Posted by code777 View Post
    Hey guys, when I woke my iMac up just a few seconds ago I got this msg.

    "This Computer's local hostname "****computer.local" is already in use on this network. The name has been changed to "****-2.local" automatically

    To change the local hostname open System Pref. and click sharing. Then click edit and type the name in the local hostname field."

    Why would this happen?
    Hello, I Have the same thing that happened. There is only one computer. I have not made changes. I do not know what this means, (local host etc). What should I do? I cannot do the change suggested. Does this mean someone else has gained access?? Thanks for any help.

  7. #7


    Member Since
    Oct 15, 2009
    Location
    Taylorsville, Utah
    Posts
    31
    Specs:
    15" MacBook Pro, Mavericks, 10.9.3, iPad 3, iPhone 4S, IOS 7.1.1
    I only have one MacBook Pro. It is networked via coax with network switches between it and the DSL Router and also connects via Wi-Fi through my new Airport Extreme. The AirPort Extreme is plugged into the the network switch.

    Every few days when I wake it up in the morning after it has been asleep all night I get the message, "This computer's local hostname "xxx-MacBookPro-2.local" is already on this network. The name has been changed to "xxx-MacBookPro-3.local"". I changed it back to "xxx-MacBookPro.local" a few days ago and now it is back to "xxx-MacBookPro-3.local". Is this because I have both a wired Ethernet connection and a wireless connection?

    I have an iPhone 4S and an iPad 3 in addition to the MacBook Pro all connected via wireless.

    Does it make any difference that this keeps changing?

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