Since I have High Sierra installed, I cann't send iMessage. It shows "Not delivered", but incoming messages works properly. I did try to turn on and off iMessages, restart, activate two factor authentication, but it still doesn't work.
Mac mini, macOS High Sierra (10.13)
Hi IBG,
In another thread (I referred to in this thread), the following worked for me:
1) Close the Messages App
2) Open Key Chain Access
3) Select your main keychain (usually the user name) at the top left side
4) Select "All Items" on the lower left side
5) Search for entries of "IDS"
6) Highlight and delete all entries that has IDS.
7) Search for entries of "FaceTime"
8) Highlight and delete all entries of FaceTime
9) Search for entries of "Messages"
10) Highlight and delete all entries of Messages
11) Reboot
Optional 12) Test it out. If it doesn't work, zap the PRAM a couple of times, then try again.
It was scary because it mentions something about not being able to open previously received chats, but I found the was not the case. I did it and it cleared up the problem for me. I had A LOT of old Message Encryption and Signing keys. Probably some old ones were incompatible or one of them was corrupted. Hope this helps.
r/Jim
Fair enough.
9:02 pm Tuesday; October 10, 2017
I am also using KeyChain.
I am in contact with Apple Support at the moment. I am speaking to 2nd level since 1st level did not a clue.
The supporter has tested several thing and taken some data dumps for further analysis.
I have same problem. After installing High Sierra, iMessage is not sending messages properly like everybody else in this thread. Did NVRM reset, Safe boot, log-in and out numerous times. Nothing works.
Worse still, FaceTime also showing some problem. Once I run Face Time, it's logged-in but call is not connected. To the recipient it shows "Connecting" but not connected. After another call, Face Time shows that it's logged out and ask me to log-in again. Once logged-in again, I can make Face Time calls. This means I need to try three times to have proper Face Time calls.
Anyone having same problem with me?
FYI, I'm using MBP 13" Early 2015 and running High Sierra.
I was in contact with Apple Support at the moment. I am speaking to 2nd level since 1st level did not a clue.
After collecting a lot of data on my computer the Danish supporter (after also talking to the Swedish support) promised me to contact in the following week. I have heard nothing at all.
I still have the issue. Same as sos4help.
Exactly the same. Was in contact first with the Swedish support and then the Danish support. I also spend almost an hour I think. He promised to look further into this an contact me again. I even got hos personal apple email address, but since then no-one contacted me and he does not answer any of my email at all!!
I have tried almost everything thing. Still have the problem.
Hi,
Try this
8:44 pm Thursday; November 30, 2017
I did try it a few times. I can send classic SMS from my Mac. But iMessage doesn't work.
Same issue here on High Sierra.
Apart of this, I've also got an issue with FaceTime - not able to make or receive a call to/from another iMac with El Capitan installed.
Thank you, my problem looks solved!
Someone on this thread suggested to delete certain keys under keychain access. tried that -- didn't work. iMessage still says "not delivered"
Can't wait for Apple to put User Experience as a priority again because this is worse than Microsoft in the late 90s/early 2000s.
I have this problem now since upgrading to Sierra. Did anyone ever tell you how to fix it?
Thank you it worked immediately! I am most grateful!
Did not work for me.
Same thing with me. I tried signing out, quitting Messages, then logging back in. Still no-go. :-(
High Sierra won't send iMessages
