Q: iMessage on my mac says every contact is not registered with iMessage

Just an update to the seeming hopelessness of this situation.

I have an iPhone 5s with iOS 7, an iPad 2 with iOS 7 and an iMac with Mavericks (OS X 10.9.5).

All three of these have sent and received all messages for a year now. Suddenly, on Sept. 9, it all broke. My Phone continues to work fine, but the other two will not receive nor will they send. (I am only trying to send to other Apple devices).

Several times I have logged out and in again from iMessage, even reseting my Network settings on the iPad per one suggestion. Nothing.

Again, I just now logged out of iMessage and FaceTime on all 3 devices, then back in again starting with m y iPhone. As I logged on thru my iPad, my iPhone received notices saying that the iPad had connected to my account. Then when I logged on thru my iMac, both my iPhone and my iPad received notices saying that the Mac had connected to my account.

So it is clear that they are connecting to the server in some fashion, but still not sending nor receiving of iMessages. )FaceTime does work though).

The only thing out of the ordinary that I did was to partition my drive on the Mac and install the Yosemite Beta. I logged into my account on Yosemite, used it briefly and then closed it, rebooted to Mavericks and continued on. I did not realize that the problem with iMessage had started until several days later when I looked at my iPad and noticed a few messages had failed.

Could logging into my Apple ID thru Yosemite have screwed this all up? (Incidentally I did NOT start using iCloud Drive was I know that would have broken things in the cloud).

I hope that someone who reads these posts will have an idea about what we can do.

Thank you.

Hi,

Whatever the cause of this is it is not caused by using the Beta of Yosemite.

7:27 pm      Monday; September 22, 2014

I'm also having this problem, and my girlfriend is as well with her Mac and Ipad. We have both tried everything listed in this thread with no success. We are also college students, but live off campus and doesn't work there either. I have forgotten all networks connected to the Campus and as said before, done EVERYTHING listed above, as well as the contact card part. My girlfriend also took her stuff to Apple store not long ago, and they didn't even know what she was talking about and pretty much blew off her question and request because her Macbook Pro is still under warranty... I'll be following this thread in hope that it is fixed. Mine also has been out for about the same time frame everyone else has. And I hope Apple focuses on one of their main apps and gets this fixed because this is BEYOND aggravating.

Edited* Neither of us have the Yosemite Beta.

Hi all,

Level 6 Poster can access the Lounge area here at Apple Support Communities.

One sub-division  that can be linked to a Post there is "New Notable Issues"

I have posted a link to this thread and explained that all the regular "fixes" have been tried and failed.

I also reported it to th feed back page for iChat.

http://www.apple.com/feedback/ichat.html

I tend to use this page as these will be the same engineers that work on Messages.

Hopefully both routes will reach the desired group of Engineers.

It is not the fasted method of raising the issue but it is the one that is most likely to produce results (even if it is not that instant)

7:43 pm      Tuesday; September 23, 2014

Thank you!

That sounds promising. ;-)

Thank you. Even when I am not posting anymore, the problem still persists. I kind of gave up trying, but I paid for all these services to work, so these issues should be fixed...

Errr,

The "promise" will be about as fast as the next update to the OS (if there is one with Yosemite on the horizon).

Only twice during the whole history of iChat and Messages have there been Stand alone update to the app outside of OS updates.

The last one was a quick fix after OS X 10.4 came out with iChat 3

Apple changed the connection protocols and then found out that a large part of the American east's internet backbone was not set up for it.

It effects many from New Orleans to Chicago to the Atlantic seaboard.

It seems that despite releasing it to Developers, they are more interested in how the OS will work with their app rather than testing every function of every app.

8:38 pm      Tuesday; September 23, 2014

Update to my situation: today (9/27), around noon, I was surfing the web on my Mac when I received the roughly 2500 messages that had been exchanged over the last 18 days since the Message-pocalypse began on 9/9. Messages proceeded to work for several hours on my Mac until just now, when I awoke my Mac from sleep mode. All contacts are red again. There is hope. We can do this.

Hi,

That sounds like someone has tried re-setting the iMessages servers with only a partial success.

I would try restarting the Mac and see if that makes a difference.

7:05 pm      Sunday; September 28, 2014

I know it has been "disproven" but I am only having this problem when I am on my university wifi, It works fine at home. Looking forward to a fix NOW!!

Add one more person -

Since 9/9/2014, my iMessage on my iPhone works fine but my iMessage on my Macs and iPad stopped working, with all my contacts showing as "xxx is not registered with iMessage".  My phone was running iOS7, has updated to 8.0, then 8.02. My iPad is running iOS7, my iMac Mavericks and my Macbook Pro Maverics. This happens across multiple ISPs, wifi and verizon.

Hi,

It would be also worth those involved to also give Feedback.

Either use http://www.apple.com/feedback/

or http://www.apple.com/feedback/ichat.html

I personally tend to use the iChat one although it have been a long whole since the change.

If you don't have an AIM Screen Name but have an Apple ID issues by Apple (ending @mac.com, @me.com or @icloud.com) then put that in the box as it is a valid Screen Name.

Use the Free Text Area on the iChat page to add details such as the OS version (the drop down lower down the page is often behind the times) and the Messages version (that drop down is well out of date) as well as a description of the issue.

8:49 pm      Tuesday; September 30, 2014

For the love of PETE!!!

Please fix this :-)

FWIW, I have been in contact with Apple engineering, it appears to be an Apple ID issue, they have resolved this for me, (not sure what they did) and I am still waiting for an answer to what they found.  I had 5 devices affected by this, 2 iPhones, iPad, iMac and a Macbook Pro.  My AT&T iPhone was only phone working, all other devices look like I was having a conversation with myself and I could not reply.  Except for the Verizon iPhone, I could start new messages, but only SMS.

How did you get in contact with the engineering team? I still have the problems with my Macbook 13" 2013 model, but my iPad Air's iMessage is working again, without me doing anything...