High Sierra won't send iMessages

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.

Dear all,

I have the same problem. I have been in contact with Apple service Germany (2nd level). They have been extremely helpful and willing to solve the problem. However, even after one hour of phone call and many attempts, the problem has not been solved.

After the upgrade to High Sierra, the Messages app does not deliver my messages anymore. I can still receive them.

I can send normal SMS through the hands-off feature, but not iCloud. I have also tried in safe mode and to create a new mock user account. Nothing has so far helped.

If anybody has experienced a similar problem and she/he knows a solution/fix, I would be very grateful to her/him to hear about that.

I also use Apple Key Chain and I have not tried to disable it yet.

Try the link from Jim Martin’s post. It solved my problem right away. With deleting some keychain entries, I don’t have any problem with Facetime / iMessage and feels like those two apps are running more smoothly than before.

Thank you s0s4help!

I have proceeded by deleting several entries (perhaps 20 or 30 in total) from the iCloud keychain referring to Messages.app or Apple or iCloud etc.

After so many days of failed attempts, this has solved the problem. I will also report to the Apple service in Germany, which is still looking for a solution.

I had this problem after upgrading to HS, tried loads of stuff such as signing out / in and deleting items in keychain but nothing worked. In the end I signed out of iMessage, restarted, then zapped the PRAM (CTRL,OPT,P,R) and then signed in to find it working.

Hope this helps.

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.

I talked to apple chat support and they had me reset the PVRAM.

1: Shut down your computer.

2: Immediately after powering on, Hold down Command+Option+P+R until you hear the second startup chime.

I had to do it twice but it worked. Messages are sending just fine now.

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

Did you try this?

1: Shut down your computer.

2: Immediately after powering on, Hold down Command+Option+P+R until you hear the second startup chime.

That's what I did and it worked like a charm! Thanks to Seandiego!

I tried this and it worked for me. The fix is a little more intrusive than I think it needs to be (removing all FaceTime and IDS entries). I stuck to just removing 'messages' entries and it did fix iMessage.

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.