Why do I have multiple computer names in Network?

I have a problem since loading Yosemite. In my Network list I have 11 other names for the computer each with the original name followed by a number in brackets. Is there a way to delete these? Internet sharing is turned off. I do not yet use a time capsule. I also get a message saying another device is using the iMac's IP address when nothing else is.

The Calendar app pulls birthdays from the Contacts app.
If you also have another Birthday calendar with the same birthdays, they will show up twice.

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Why do I have multiple "birthdays" on Calendar only on my Iphone?

Why do I have multiple "birthdays" on Calendar only on my iPhone?

It is probably related to your calendar syncing with certain services and/or apps that end up duplicating the entries. Investigate your sync settings like iCloud, facebook, etc or apps like Cobook which can sync your contacts/to facebook and gmail contacts. The birthdays for all of those would then show up in ical. If there is some kind of redundancy happening it might even resync the same info from the same place multiple times. If you can zero in on a particular service or app that might be the cause, try temporarily unsyncing it to ical/address book and see what happens.

Why do i have multiple contact entries?

why do i have multiple contacts of the same person in my contacts?

likely cause is syncing with several sources like both with itunes and also from the phone itself and or icloud

Why do I have to reconnect to my Network manually every time I turn off my laptop? But yet it stores my password.

Why do I have to reconnect to my network every time I turn off my laptop? But yet it stores my password. It has been happening ever since I upgraded to OS X Lion. I have two default wireless routers I connect to (my home and work) and yet everytime I turn on my computer I have to manually select which network I want to join from the drop down menu at the top of my desktop. Any suggestions? I dont want to have to manually choose, it should just look for those two networks automatically and connnect to whichever one is available.

It was already set to Automatic......and still it doesnt connect to my network.

How do I delete multiple computer names on iMac?

During the process of setting up my new MacBookPro and transferring data from my iMac desktop I was instructed to select another name for my computer. Accordingly, I seem to have these multiple names I would really like to delete. How can I do this and go back to my original computer name??

The answer above by Kappy is a ridiculous answer; it doesn't even address the problem with the new OS Yosemite, and it solves nothing. I don't mean to be disrespectful to Kappy, but Is Apple aware of this problem? According to the answer above, NO, as the real question was completely ignored. Or even Apple hasn't figured out a work around so even the "super users" cannot help with reasonable and reliable suggestions. What are we supposed to do in meantime until Apple figures out that this is a problem? I've investigated multiple resources and all I am seeing is the same thing; no one can figure out a work around that works consistently. From what I've read, many, many Mac users have the same problem - multiple names are suddenly assigned to the same computer for no apparent reason. In my case, the "master" computer that runs my network completely is now constantly changing so much that it's name is now up to "Lynn's Computer (14); and I can't figure out why this is happening. I've shut down File Sharing completely on all of my computers and rebooted after doing the same (as suggested by others). Changing the name in preferences does nothing (as suggested by others). Disconnecting my Ethernet cable on one of the computers (as suggested by others) does nothing. There is something that triggers the computer to create a completely new computer name. Don't tell me that Mac sees an identical computer name and therefore gives it the same name with a number after it such as in the case of my current situation. I tend to use only one burner when i am cooking for a crowd. as "My Computer (2), etc because I've never renamed my computer in the past! I am now up to 14 computer names for the same computer and have not renamed the computer until after I installed Yosemite and started having this problem. After installing Yosemite, the name it was given is (14); Really? 14 tries using an identical name as the original computer? After I saw (14), I have tried to rename the compute but it just starts a whole new cycle of generating a new computer" . This problem began happening immediately after my install of Yosemite. I've tried multiple work arounds as suggested by others and none of them work. Changing the computer name in Preferences does nothing other than creating a completely new computer name! Is Apple aware of this? According to the answer above, NO. What are we supposed to do in meantime until Apple figures out that this is a problem?
A problem such as this should be addressed immediately.
Respectfully,
Lynn

Why do I have multiple copies of Pages

I should say that this is not specifically related to Pages, I have multiple copies of all the iWorks apps on my computer but because I could not find a general iWorks forum I decided just to post about Pages with the asumption that it would be the same for the other iWorks apps.
I have the pre-update iWork 09 version 4.5 that was installed from Disk when i first bought my Mac. I have since upgraded my Mac to Mavericks and upgraded pages (and iWorks) to the new iCloud versions 5.2
When I go into my Applications folder, I see a subfolder in there called iWork 09, and in that folder is the old 4.5 versions, but I also see the new versions of the apps as seperate apps in my Applications folder.
See pictures
Basically all I want to know is if I App Delete the old iWorks 09 versions, will it affect my access to the updated versions, because it seems to me like I have two sets of iWorks apps (one old and one new) and of course I only need the new one

iWork 09's Pages is version 4.3. Yes you have to versions. They hare 2 different applications with the samme name. I wouldn't delete iWork 09 as it has about 100 more features than Pages has. But if you have it on a disk you can as you always have to possbility to install it again from the disk.

Why do i have multiple iPhoto libraries

I am trying to migrate my iphoto library to a new location but i have 3 libraries to choose from. why were the others created? one library is 90gb, the other 2 are 22 gb
Should i just delete the other 2?

No way for anyone but you to know - you have multiple iPhoto libraries because you have created them - only you know when and why
And only you know if they are ok to trash - depress teh option key, launch iPhoto and use the select library window to open and check each one and then desiece if you want to keep it or delete it
LN

Why do I have multiple copies of the same song?

When I open my iTunes on my iPad I have multiple copies of the same song. It seems that when I connect and sync to my computer that it does not recognize that the song is already on my iPad, so it sends another copy. When I try to delete the second copy from my iPad by swiping to the left and hitting delete, it doesn't delete and I see the cloud icon like it wants to down load if from the cloud automatically again. How can I clean this mess up?

Hi R_3S,
Welcome to the Apple Support Communities!
It sounds like your Music application is showing your previously purchases music, with the cloud icon, on your iPad as well as what is synced onto it. Please follow the instructions in the following article to turn off Show All Music.
iTunes Match - iPhone
http://help.apple.com/iphone/7/#/iph6e2dfb83
Just show music that’s been downloaded from iCloud. Go to Settings > Music, then turn off Show All Music.
Have a great day,
Joe

Why do I have multiple entries on my calender

Why is that I have multiple entries on my calender of the same appointment or holiday since I started using I cloud. How do I clean up my calender and not have future duplication on my devices.
I am using the I pad 2 and Iphone 4S
Thanks

Click the calendars button in the top left corner of calendar, look to see if you have groups of calendars other than iCloud. I only have iCloud calendars on my phone so can't show you what I mean, but I have other groups on my iCal application on my mac which is sort of similar.

Why can't have apple email name as Apple ID

Q. Why cant I have my Apple email name [@me.com} as my Apple ID?
Would like to move totally over to Apple but unable to change my Apple ID (currently @gmail.com). Created a iCloud account with @me.com account so it is the same as my Apple email address, but then my Address Book duplicates every entry because my iCloud and Apple ID are different. Yes, I have created a iCloud account using the same log in as my Apple ID and my Address Book is normal, but then im logging on using a @gmail.com name but emailing from a @me.com account.

There are a lot of users on here who do not want their email addresses out for public view...and a lot of users who prefer an alias instead of their names. Rather than have conflicts it is easier to just keep everyone's email id's private unless an individual wants to publish it in their profile.

Double computer name on network and NAT issue with Back to My Mac

These are the problems I am having:
When my MacPro workstation (which on the network is named "The Beast") wakes from sleep - I get a message saying "there is already a computer on the network with the name "The Beast". Other computers on the network can now find you at "The Beast-2"" and it gives me a new name in the file sharing preferences - even though it is the only computer on the network with that name.
Why is this happening???
The other problem is with BackTo My Mac - When I try to enable it - I get an error message saying "Turn off NAT Addressing" - which I thought was turned off since the AEBS is in Bridge Mode. Why is this happening?
Here is my network setup which consists of the Modem / Router from my ISP - an Airport Extreme Base Station and one Airport Express - which is connected to my MacPro via ethernet. The MacPro does not have an airport card installed and is running OSX 10.6.8 - all other computers / devices are running 10.7.x and iOS6).
VDSL Modem / Router (from Internet provider) with wireless turned off - (so it is not broadcasting a competing wireless signal) - connected via ethernet to my Airport Extreme Base Station.
Here are all the settings on the AEBS and the Airport Express: - I am using Airport Utility 5.6.1 on my Mac Pro running OSX 10.6.8 - so the setup prefs are different than the newer version of Airport Utility found on 10.7.x systems - but both work fine. Although I did notice that the option to allow ethernet clients to connect to the Airport Express does not exist (or I just didn't find it) in the newer version of Airport Utility.
Airport Extreme Base Station is set up as follows:
Wireless Mode: Create a Wireless Network
Wireless Settings:
Allow this network to be extended IS CHECKED
Radio Mode: 802.11n (b and g compatible)
Wireless Security: WPA/WPA2 Personal
Access Control:
MAC Address Access Control: Not Enabled
Internet Settings:
Internet Connection:
Connect Using: Ethernet
Connection Sharing: OFF (Bridge Mode).
TCP/IP:
Configure IPv4: Using DHCP
Advanced Settings:
Logging & Statistics:
Syslog Destination Address is blank (as in nothing appears in this field).
Syslog Level: 5 - Notice
Allow SNMP is CHECKED
MobileMe:
Back to my Mac is turned off - but if I try to turn it on I get an error message saying "Turn off NAT Addressing - which I thought was turned off since the AEBS is in Bridge Mode. Why is this happening?
IPv6:
IPv6 Mode: Link-local only
As stated - my MacPro with no wifi card - is connected via ethernet to an Airport Express which connects wirelessly to the AEBS for network and internet access.
Airport Express Settings:
Airport Settings:
Wireless Mode: Join a Wireless Network
Allow Ethernet Clients IS CHECKED
Wireless Security WPA/WPA2 Personal
Internet Settings: Are grayed out (as in I can't change these settings - I assume because they are being controlled by the AEBS) and read as follows:
Connect Using: Wireless Network
Connection Sharing: OFF (Bridge Mode)
TCP/IP:
Configure IPv4: using DHCP
All other settings are identical to the AEBS.
All other WiFi devices in the house (MacBook Pro, iPhones, iPad's, iMac, Apple TV, Nintendo Wii etc…all are able to connect to the network and connect to the internet - no problem.
Thanks for any insights into what might be causing the double name on the network and why it is asking me to turn off NAT addressing - when both my Airport devices are in Bridge Mode?

I am also having this issue... any updates on this??

List all computer names on network

Our former router would display: computer name, IP address, and MAC address. Here, you can see that our "new and improved" router (issued by our benevolent ISP) only displays IP and MAC. I was just wondering if there were any ways for me to display computer names to better assess if any unauthorized users are leeching onto our network.
One quasi-solution was the command:
sudo nbtscan -r 192.168.0.1/24
However, it only shows Windows client names, and only some of the time (for instance, it isn't displaying a roommate's laptop name, even though his laptop is online and running Windows).

ewaller wrote:Have you looked at Avahi?
This may just prove to be the philosopher's stone for which I've sought However, when I run the command to view network hosts, it only displays one, my roommate's Chromecast, and just kinda idles on that (I've redacted the username and IP):
root@Sera:~# avahi-browse -alr
+ eth0 IPv4 Username Chromecast _googlecast._tcp local
= eth0 IPv4 Username Chromecast _googlecast._tcp local
hostname = [Username\032Chromecast.local]
address = [192.168.x.xx]
port = [8009]
txt = ["ic=/setup/icon.png" "md=Chromecast" "ve=02" "id=ed346d0f9965c73d2328545b8f55166e"]
EDIT: I seemed to have missed the part about avahi-browse detecting computers with Avahi installed :\ So, that might explain why most of the computers on the network aren't showing up -- although it doesn't explain why Chromecast shows up.
Here's a screenshot of our old router, which shows the names of connected users. I'd think it wouldn't be so hard to implement this on a 'newer' router.
Last edited by apolyonn (2014-02-17 03:28:21)

Multiple Computer Names for MacBook Pro in Finder

Recently I upgraded to Yosemite. I have noticed when I open a Finder window my MacBook Pro's Name has had a number after it and the number is increasing. Under Devices today I had MacBook Pro (2), MacBook (3), etc etc. We are now on MacBook Pro (6). I have also noticed in the Shared window, my MacBook Pro shows up 5 times. Each is listed MacBook Pro (2), (3), (4), (5), and (6). My MacBook is the only hardware on our network.
Any thoughts?
Scott

Hi. I have followed your instructions above. Did not have to disable the 5GHZ for the multiple instances to disappear on my wife's 2011 Macbook Air. All I did in the AirPort Utility was turn off the Guest Network. Rebooted the Time Capsule and my wife's Air and only one instance now showing. I do have a question. In the Devices section of the Finder, it still shows the Air listed as "KarenAir (8)". Any idea how to get rid of the number? If I go to Finder - Go - Computer, it just shows "KarenAir". I tried renaming it which it allowed me to do, but it did not update in "Devices" on her computer or in the "Shared" section on mine. Both still show the "(8)". Any ideas? Does this resolve itself in time? Why after renaming the HD on her machine would it still show up with the old name under Devices? I since have named it back to "KarenAir". Before doing that, I rebooted to see if that would have an effect. It did not.
BTW, "Back To My Mac" was never checked on her machine. So nothing was done as far as that goes.
Once again the question is how can the name be updated to NOT show the number under Devices in Finder.
Thanks for your help and for figuring out/posting the solution above.

Script to tracert multiple computer names and find specifc text

I'm looking for a script to tracert multiple servers and find a specific text in tracert output and get output as csv.
Below is what I have:
@ECHO OFF
FOR /F %%S IN (SERVERS.TXT) DO (
ECHO %%S >> OUTPUT.LOG
TRACERT %%S | Findstr "firewall -f-" >> output.log
Above script gives below output:
server1
4 1 ms <1 ms <1 ms site1firewall [10.2.2.1]
server2
4 1 ms <1 ms <1 ms site2firewall [10.2.22.1]
server3
I want to tweak this script:
1. Verify if server is alive/accessible before running tracert
2. Output in table format (in single line)
Can somebody help?
Thanks.

The code does exactly what you asked for:
It writes the machine name to the output file, without a CRLF.
It writes the output from the tracert command to the output file, with a CRLF. When the tracert command generates no output (because it cannot reach the target machine) then it writes nothing, not even a CRLF.
You must now add some code that distinguishes between responding and non responding machines, e.g. by pinging the target machine
before issuing the tracert command.

When importing my address book from Outlook why do I have multiple entries for the same contact?

I have an address book and it contains one list in Outlook. I just downloaded Thunderbird and imported my address book. The address book and one list imported very easily but there are anywhere from 3-5 entries for each person in my contacts. If I delete the extras they are removed from my list as well. Why are there multiple listings for each contact and how can I remove the duplicates without losing my list entries?

as I was looking thru pictures in my finder I noticed there were several copies of the same pictures I had taken yesterday. I just went thru all Seven copies of the pictures (accidental pics of my hands and the desk etc) and right clicked and moved them to trash, then I thought I'd look it up when I realized its not just these pics, but very many had een stored in groups of three or four.
1. Why is that?
Depends on where you saw them - If they were in the iPhoto library iPHoto has either two or three different versions (no duplicates) or each photos in its library - this is not optional and can not be changed -- If they were not in the iPhoto library then you can do what you please with them and they have nothing to do with iPhoto - iPhoto is only involved with the photos in its library
2. Why is it advised to NEVER make changes to the structure or contents of iPhoto in Finder?
(as quoted Below)
"I would suggest using one of the proven safe programs - if you are going to manually remove them be sure to remember that you NEVER make any chnages to the structure or contents of the iPhoto library using the finder - only make changes using iPhoto"
Very simple - if you do you will destroy your iPhoto library and have to start over losing all work you have done in iPhoto - The iPHoto library is a SQLite database and there are NO user servicable parts in the iPhoto library and any changes made using teh finder will corrupt the database and cause dataloss
Is that a good enopugh reason for you?
So if these photos were in the iPhoto library when you
I just went thru all Seven copies of the pictures (accidental pics of my hands and the desk etc) and right clicked and moved them to trash,
You destroyed your iPhoto library and will either have to restore your backup from before you did this. put everything back EXACTLY like it was before or start over
LN

Why do I have multiple computer names in Network?

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