iMessage Delay High Sierra

Hi,

Open a Finder Window and then use the Go Menu whilst holding down the ALT key.

Choose the Library that now appears in the menu list.

Navigate to Preferences.

Find com.apple.imessage.plist

And com.apple.imessage.bag.plist and drag both to the trash and then try to start Messages again.

7:23 pm Wednesday; January 17, 2018

Here's what I did, it looks like it's improved:

- Disables imessage on iPhone;

- Disable the iphone number on the Mac;

- Log out of the Mac's imessage;

- Enable imessage on iphone;

- Log in to Mac iMessage;

- Activate the number again in Mac iMessage.

Hi,

The key might be the first line where the iPhone App is turned Off.

This cuts the login to the server much more definitely than just signing out the Apple ID on the iPhone.

Then he (presumed) deselect the iPhone Number on the Mac version before then signing out on the mac version

At the 4th line of re-enabling the app on the iPhone does mean waiting for the Number to Verify.

I would throw in a test at that point

On the iPhone Manually type in the Apple ID used on the Mac.

Sign the Mac version back in and then send from the iPhone.

At this point the iPhone can only use the iPhone Number and the Mac only the Apple ID

If that works add back the Apple ID to the iPhone.

Accept the pop up on the Mac so the iPhone Number is accepted.

Reset Text Forwarding if required.

8:53 pm Tuesday; October 3, 2017

One odd thing I just noticed (Having this issue on two iMac's on High Sierra but no other systems still on Sierra) - if I turn off location services completely the messages seem to arrive on both my iPhone and Mac at the same time. Not sure why but I could reproduce that on both iMac's. Perhaps you can try that to see if it helps?

iOS 11 too. Log out. I mean, break the connections between your devices, then log back in again. It's gonna take a few tries, like a dozen or more, before it stops giving error messages when you enter the 6 digit number, but when you finally get reconnected, it works...

Signing out and in in iMessage on the iPhone and the Mac.

I disabled and then re-enabled my iCloud account in the MacOS Messages app. Worked. At least for now.

Hi,

Did you do that the way korn.body describes which involves turning the App Off on the iPhone as well as Signing out on the Mac ?

Basically he (?) is suggesting starting from scratch.

8:38 pm Monday; October 9, 2017

i had this same problem and i seemed to have fixed it by singing out of imessage....(not icloud, just imessage).

after doing this it all seems to be back to normal...i think. more testing to be done.

I've been having the exact same problem. I've noticed that if I initiate a new message on the mac client - even if I just type in a number and never actually send anything - the desktop client syncs up. I've only done it a few times so not sure if it's a reliable workaround yet.

Aha! Turning off your Settings - Messages "Send & Receive" Mac device sends authentication into a loop. Be of good cheer, if you type in the number enough times it WILL eventually take the number, and my messages pop up once again...

I turn off "play sound effects" in the Preferences and I get messages on my Mac Mini now. My iPhone still beeps, so that's fine.

I agree. The issue seems to be fixed now for me also.

Mac: macOS 10.13.1

iPhone 6: iOS 11.1

AppleWatch: watchOS 4.1

All working solid now, yippee!!

One very last thing. I found that for some reason "text message forwarding" in the settings for message on your iPhone can be switched off, although the icon will appear on your Mac task bar as you found. Are all your devices on in the settings?

Hi,

korn.body describes remaking all the connections including the iPhone's ones

8:31 pm Tuesday; October 3, 2017