3 Replies Latest reply: Nov 9, 2010 10:54 AM by PKMousie
;lsdjl;asjflsjfl;ksdjflksdjfl; Level 1 Level 1 (0 points)
I occasionally get this error - what do I need to do? Is a backup being created corectly?

"The name of computer "XXXiMac (12)" is already in use on this network. The name has been changed to "XXXiMac (110"

Thanks!

iMac, Mac OS X (10.5.5)
  • William Boyd, Jr. Level 6 Level 6 (10,515 points)
    ;lsdjl;asjflsjfl;ksdjflksdjfl; wrote:
    I occasionally get this error - what do I need to do? Is a backup being created corectly?

    "The name of computer "XXXiMac (12)" is already in use on this network. The name has been changed to "XXXiMac (110"


    I used to have that problem. It finally went away when I migrated to OS X 10.6.

    If you're really running OS X 10.5.5 (as suggested by your details), unless you have a good reason to stay with that, I'd apply the updater for 10.5.8: http://support.apple.com/kb/DL866 There's a slight chance that could fix your problem.

    You can use the Sharing panel of System Preferences to rename your iMac, but that will only help until the next time the problem recurs.

    Why are you worried about a backup?
  • ;lsdjl;asjflsjfl;ksdjflksdjfl; Level 1 Level 1 (0 points)
    Thanks, I will try the upgrade. I just want to make sure the backup is sound.
  • PKMousie Level 1 Level 1 (0 points)
    I've had the same or a similar issue. My computer was constantly renaming itself with a (2) every time it booted, after a system lockup. I tracked the issue down to CD/DVD sharing... when turned off the problem went away.

    When CD/DVD sharing was on, I could not change the name back to the original version, it would get rejected and immediately set back to the version with "(2)", displaying the message:

    +The name of your computer "Name" is already in use on this network. The name has been changed to "Name (2)" automatically.+

    With CD/DVD sharing turned off, I could name my computer whatever I liked, even back to the original name. Turning DVD/CD sharing back on again would instantly rename my Mac. It's very persistent bug!

    Fortunately I found a fix. I was able to get rid of the problem by toggling Bonjour, as described here:

    http://tech.karbassi.com/2007/11/06/leopard-turn-off-bonjour-mdnsresponder/

    To turn Bonjour off:

    sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist

    To turn it back on:

    sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist

    Toggling Bonjour (mDNSResponder) forced a reset of something on my system somewhere, and now I no longer see the issue on reboot, even with CD/DVD sharing turned on. I can turn sharing on and off at will, and my computer is never renamed. Success!

    I don't think this problem has to do with CD/DVD sharing specifically... I think it's a bug in Bonjour. I've seen threads where people have complained about this issue because of printer sharing, or remote management! My guess is that a crash can cause a mDNSResponder config corruption, tricking Bonjour to share devices or services using the same name as your computer, forcing the name conflict.

    In any case, I hope this fix works for you too. I know I'm a lot happier now that there isn't a lingering issue on my box!