The name of your computer "name(7)" is already in use on this network. The name has been changed to "name (10)".

I know why this happens - there are two network connections to the same network. One is wi-fi, the other is ethernet.
I can stop it happening by turning off wi-fi.
I'd rather keep both connections, though.
Is there a way of adjusting this so it stops doing it?
Should I be using the route command to set up different routes to the two links?
If so, what's the best way to do this?

I thought about it ...
The name of the computer have different meaning.
Normally, the computer name, or in this case 'hostname' refer to the RFC of DNS, Domain Name System IP Service, that resolving 'speaking names' to IP adresses. If your Computer is a Part of the global, Public Internet and so listed on a Public Domain Name Server, the function 'global hostnames' should bei used.
The local hostname refers to the apple Bonjour Service, to solve local network units. (http://support.apple.com/kb/ph3763)
The need of different interface names for your Computer sounds strange to me, because the name represent the same machine, the same services your computer offer in your Network.
I had similar symptoms in my network, because i Need to use both interfaces (ETH an WLAN). But, this problems were related to adress conflicts, refresh time of routing tables in my network. Since i use static IP adresses for my mac interfaces, all things ok and i never seen again any problems.

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The name of your computer "Alpha (3376)" is already in use on this network. The name has been changed to "Alpha (6759)". Why do I keep getting this message?

I keep getting this message every time I log in. Why? I have an iMac with sharing on for my networked printer and to share file between the iMac and my MacBook. Can anyone help?

This is an annoying but not disastrous thing. Your computer sends messages on your home network and each message includes its name. If your computer is restarted or if it goes to sleep and wakes up all those messages should now gone but sometimes when the computer reconnects to the network it picks up a message with its name in it. Your computer doesn't realize its an old message from itself, it thinks the message is from a computer with the same name and that's not permitted so your computer's name is automatically changed.
Temporary solution (or not): turn everything off - your computers, printers, internet modem and router; any and all devices that are connected to your network. Then restart them. I hear about this issue all the time and this solution has been temporary for some people (days, weeks, or months) and for others it has seemingly solved it totally.

This computer's local hostname is already in use on this network the name has been changed to

I've been getting this error after waking my computer from sleep. I think it has to do with my airport extreme. Does anyone have a fix?

Sometimes this message means that you have two simultaneous connections to the same local network: probably Ethernet and Wi-Fi. Disconnect the Ethernet cable or turn off Wi-Fi.
Sometimes it happens because a device that gets its network address from the router wakes from sleep, and the address it was using before has been assigned to another device.
Rename the computer in the Sharing preference pane.

This computer's local hostname is already in use on this network

has anyone else experienced this issue?
The iMac will display the following error message on the screen every day or so (with the host number incresing by 1 digit each time):
This computer's local hostname "MacName.local" is already in use on this network.The name has been changed to "MacName-1.local". This continues even after I've reset the name in the System Preferences panel/sharing settings, for example ("MacName-2.local, MacName-3.local, MacName-4.local" etc).
Please advise
Currently running an Apple iMac
OS 10.6.8
*please see attached screenshot for a reference

(1) Check names of all other devices on the network, including the router, any airport express, iphone, ipad, printers etc. Make sure these all have unique names.
(2) Do you have both wired ethernet as well as wireless active on any of these devices, including the Mac computer? This has been linked to such renaming behavior in the past, apparently the two methods of accessing the internet, if both are active at the same time, may switch off and on and conflict with one another (shouldn't happen, but apparently does sometimes). Solution is to switch one of them off.
(3) The following may be helpful:
In System Preferences > Network > Airport > Advanced > TCP/IP
Set "Configure iPv6" from "Automatically" to "Off".
If you do this, check to make sure that your email and other tools are still working properly. If something goes amiss, change the iPv6 back to what it was.
(4) Go to your router and reset power to it.
(5) Go to your router and check its LAN client table. Make sure that all entries should be there. Investigate any "extra" devices on the network. For instance, if it shows 4 devices, but you know you have only a computer and a printer, investigate what the other two are. Delete them from the list if they really seem to be "ghosts."

I recently got a message on my screen that says "the name of your computer is already in use on this network. The name has been changed to *

I recently got a message with an exclamation mark stating "your computer name is already in use on this network. The name has been changed to ______"
How did this happen, is it phishing, malware, or did someone hit some button on here to change it. I'm hoping that someone else doesn't have access to everything on my computer now. Help!

Hello RaptorTrish,
Interesting name! You don't say what computer you are using, the OS or the nature of the network, home, office etc. Could you fill in a few details.
You are right to be concerned but there is often a simple explanation.

Should I ok "this computer's local hostname Irma-Mac-mini-local" is already in use on this network. The name has been changed to Irma2 Mac-mini 2-local

Should I ok this message-this computer's local hostname Irma's Mac-mini-local is already in use on this network. The name has been changed to Irma's Mac-mini-2local

Don't think this is a conflict with IP Addresses or computer names
= DHCP hangover when computer renews DHCP lease
There is no actual other computer
It just appears that way when reconnects so creates new -2 computer name
What types of names do you use your computers ?
Whether you name them after quantum particles or the romantic poets...
They will each start to be appended with "-2" then "-3" etc if you auto configure network settings from Airport Router DHCP service and you have this Change computer name issue where pop up window states name is already being used on your LAN
As stated previous post you can reset the computer name in SysPrefs / Sharing / Edit button
And restart Router or renew all DHCP leases (if persists in not allowing original name)
Can now press Edit and reset name of choice
But for Fix see link above

HT5167 Error after 10.7.4 upgrade..."computer's local hostname ........is already in use on this network. The name has been changed to...... What to do now to get it back to status before 10.7.4 upgrade?

Error after 10.7.4 Lion Upgrade to iMac
Computer's local host name .......is already in use on this network. the name has been changed to........
and it keeps adding up the number each time I wake the iMac.
What to do to get it back before upgrade error?

Ok worth repeating, hope this works. Finally spoke to AppleCare Support and walked me thru following...restart computer holding down "command" and "option" keys at the same time with letters "P" and "R" when computer turns on. This is what he called a PR restart, clears out discrepancies in memory (if that is what the error message actually is). Then went to Systems Preferences/Network/Sharing and deleted the number that kept increasing every time MAC would wake up.
Even tho this was just done, I am hopeful that error pop-up won't happen again. Fingers crossed!

Every time i wake my mac i get This computer's local hostname "D-360.local" is already in use on this network. The name has been changed to "D-444.local".

error message that my local host name is in use and the system generates a new one every time I wake my mac the error mssg reads This computer’s local hostname “D-360.local” is already in use on this network. The name has been changed to “D-444.local”.

There are several possible causes for this behavior.
1. Two (or more) computers on the local network have the same Bonjour name, such as "X's-MacBook-Pro.local". Resolve the name conflict by renaming one or more of them in the Sharing preference pane.
2. You have two simultaneous connections to the same local network: probably Ethernet and Wi-Fi. If applicable, disconnect the Ethernet cable or turn off Wi-Fi.
3. A Mac wakes from sleep due to network traffic. This is a bug in OS X that may only affect some models.
4. A device that gets its network address from the router wakes from sleep, and the address it was using before has been assigned to another device.
5. A third-party wireless router has incompatible settings or firmware. In that case, refer to the manufacturer or ISP for support. Restarting the router may help, temporarily.
6. See also this support article.

What does this mean? This computer's local hostname "Linda-Daviss-iMac-4.local" is already in use on this network. The name has been changed to "Linda-Daviss-iMac-5.local".

What does this mean: This computer’s local hostname “Linda-Daviss-iMac-4.local” is already in use on this network. The name has been changed to “Linda-Daviss-iMac-5.local”.
When I came back to my computer this message was on the screen. Should I be concerned ? or doing something?

Sometimes this message means that you have two simultaneous connections to the same local network: probably Ethernet and Wi-Fi. Disconnect the Ethernet cable or turn off Wi-Fi.
Sometimes it happens because a device that gets its network address from the router wakes from sleep, and the address it was using before has been assigned to another device.
Rename the computer in the Sharing preference pane.

I get this message:This computer's local hostname "x-8.local" is already in use on this network. The name has been changed to "x-9.local" I have turned off sharing and it continues to upgrade name. What is the fix?

I get this message: This computer’s local hostname “x-8.local” is already in use on this network. The name has been changed to “x-9.local” I have turned off sharing and it continues to upgrade name. What is the fix?

Hi, this is a common problem, mostly just irksome though.
It can have many cause, like using more than one Interface for connections, Router temporarily losing x.local & seeing a new connection with x.local already used, insists it must be x-1.local, x-2.local, etc..
What all Sharing do you have enabled?
Some possible fixes...
http://forums.macrumors.com/showthread.php?t=542899
https://discussions.apple.com/thread/3941367

Clicking on iTunes ikon and I get the message the item iTunes.exe that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly. What can I do, I can't open Itunes. I have over 4000 songs in iTunes that I had

When I click on the iTunes ikon I get a box pop up which reads Problem with shortcut. The item iTunes.exe that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly.
My computer which is a packard bell vista operating system, recently stopped working as the power supply overheated and blew up and it has recently been sent back to the Know How team at PC world and it seems to be since it came back I now cannot open iTunes. I have also tried to search for iTunes in the search bar, I can see several files, but can't seem to open any of these either. I think that quicktime isn't working, either.
I have over 4000 songs in iTunes that I had recorded from my collectiong of CD's am going to loose all these now? Can anyone help, with very easy instructions as I really don't know what I am doing??
Thanks

I would copy over the entire thing if you have room. With iTunes 10.4 though, you can download any previous iTunes purchases you have made in the past with your current iTunes account. While in iTunes, look at the left hand side of your screen and select "Purchases" and look at the bottom right corner of the screen and select "Download Previous Purchases". If you have an iPhone, iPod and/or iPad...you can do the same thing from each device. Nice new feature...just remember that those ripped CDs need a back-up!!! Enjoy...

HT3529 i just created my apple id and i tried to sign in on iMessage but it keeps saying that its already in use,however this is the first time that i'm using my apple id to sign in on any device,what the problem could be?

I just created my apple id and i tried to sign in on imessage but it keeps saying that it is already in use however this is the first time that i'm using my apple id to sign in on any device,what the problem could be?

You must create the account using an Apple device, a Mac (Lion or greater) or an IOS device (IOS5 or greater). Having done that you will be able to sign in from your Windows machine.
FYI, iCal is an application that can display calendars from iCloud (and others) it is not a calendar itself, merely a calendar client. In Windows Outlook is the calendar client.

I just downloaded the latest itunes update 11.1 and now I get an error messages saying "The item 'iTunes.exe' that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly."

I just downloaded the latest itunes update 11.1 for windows 7 and now when I try to open itunes with the shortcut on my desktop I get this error message: "The item 'itunes.exe' that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly." I can't open itunes at all. Is there anything I can do or is there a problem with the new update?

Start > Programs = Firefox
Does that shortcut work?
If so, delete the current shortcut that is in the Quick Start tray and drag the one that is in Start > Programs down there.

The backup disk image "/Volumes/Time Capsule Disk/Earl Burroughs's MacBook Pro.sparsebundle" is already in use. This is the message I get when it tries to back up, it had been working fine prior to this.....

The backup disk image “/Volumes/Time Capsule Disk/Earl Burroughs’s MacBook Pro.sparsebundle” is already in use. This is the message I get when it tries to back up, it had been working fine prior to this.....

The Backup disk image ... sparsebundle ... is already in use.

"name of computer "ABC" is already in use on this network...

"The name has been changed to "XXX"
I regularly get this message from the Time Machine backup process.
Why? What should I do to correct this?
Thanks a bunch.

Sometimes this message means that you have two simultaneous connections to the same local network: probably Ethernet and Wi-Fi. Disconnect the Ethernet cable or turn off Wi-Fi.
Sometimes it happens because a device that gets its network address from the router wakes from sleep, and the address it was using before has been assigned to another device.
Rename the computer in the Sharing preference pane.

The name of your computer "name(7)" is already in use on this network. The name has been changed to "name (10)".

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