Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

IMessages are not delivering from my mac, nor will FaceTime connect. Why is this?

On my Macbook Air I can receive iMessage's however when I reply the message bounces back 'not delivered'.

Additionally, if i try to make a FaceTime call, the call fails. All of my contacts are displayed in messages and the previous message threads are there. However, all previous FaceTime calls are labelled as 'Unknown' with no number despite having made calls on here to contacts before.


Both of these used to work. It has seemed to stop working since I have connected to a new Wifi at University.


I have tried restarting my iMessages from my iPhone and turning on/off firewalls. However this has not helped.


Is there anything I could do


Thank you.

Robyn Martin

MacBook Air

Posted on Oct 6, 2015 6:46 AM

Reply
Question marked as Best reply

Posted on Oct 6, 2015 10:42 AM

Do a backup, preferably 2 backups on 2 separate drives.


Quit the application.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.iChat.plist. Move the .plist to your desktop.


Restart the computer, open the application and test. If it works okay, delete the plist from the desktop.

If the application is the same, return the .plist to where you got it from, overwriting the newer one.


If that doesn’t work, repeat the above but delete the com.apple.imagent.plist


Thanks to leonie for some information contained in this.

2 replies
Question marked as Best reply

Oct 6, 2015 10:42 AM in response to tony@ctm

Do a backup, preferably 2 backups on 2 separate drives.


Quit the application.


Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/com.apple.iChat.plist. Move the .plist to your desktop.


Restart the computer, open the application and test. If it works okay, delete the plist from the desktop.

If the application is the same, return the .plist to where you got it from, overwriting the newer one.


If that doesn’t work, repeat the above but delete the com.apple.imagent.plist


Thanks to leonie for some information contained in this.

IMessages are not delivering from my mac, nor will FaceTime connect. Why is this?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.