iMessage Not Working on Mac? How to Fix & Troubleshoot Messages in MacOS

Feb 4, 2020 - 6 Comments

How to Fix iMessage Not Working on Mac

The Messages app on Mac allows you to send iMessages easily to and from the computer to any other iPhone, iPad, Mac, or iPod touch that is also using the iMessage protocol. Messages usually works just fine, but sometimes there can be issues encountered that prevent the iMessage feature from working in MacOS. Usually this manifests as an inability to send messages through the app, or time-outs when attempting to send messages that seemingly take forever, or failed attempts at sending messages from the Mac, and in any case iMessage appears to not work properly or as expected in Mac OS.

This guide will walk through troubleshooting steps to fix and resolve issues where iMessage is not working on a Mac.

Troubleshooting Messages Not Working in MacOS

Let’s go through a variety of troubleshooting methods to fix iMessages not working in Mac OS, starting from easier to a bit more complex.

1: Make Sure the Mac has an Internet Connection

iMessage and Messages requires an internet connection to work. It doesn’t matter if the internet connection is wi-fi, ethernet, a personal hotspot, but it must be an active and functioning internet connection.

Before anything else, make sure the Mac is connected to the internet and that the internet connection works. You can test this by making sure web browsers work to browse the web, using ping, or any other method you’d like.

2: Reboot the Mac

Often simply restarting the Mac will resolve any issues with the Messages app and iMessage not working.

  1. Pull down the  Apple menu and choose “Restart”

When the Mac has booted back up again, try opening Messages and sending again.

3: Make sure Mac has Apple ID / iCloud Enabled

iMessage requires an Apple ID, which is also the same login the Mac uses for iCloud. Therefore you’ll want to make sure the Mac has the appropriate Apple ID configured:

  1. From the  Apple menu, go to “System Preferences”
  2. Go to “iCloud” settings and make sure that the Mac has the proper Apple ID in use

You’ll want to use the same Apple ID on the Mac that you do on your iPhone, that way Messages will sync between both devices

4: Disable & Re-enable iMessage on Mac

Sometimes disabling and then re-enabling iMessage on the Mac can resolve connection issues specific to iMessage on the Mac, here’s how to do that:

  1. Open the “Messages” app on Mac
  2. Pull down the “Messages” menu and choose Preferences
  3. Go to the “iMessage” tab
  4. Make sure the Apple ID is set properly, then check “Enable this account” is checked

iMessage not working fix for Mac

5: Sign Out & Sign In to iMessage on Mac

Signing out and signing back into iMessage on the Mac will often remedy issues with Messages not working on the Mac too, here’s how to do accomplish that:

  1. Open the “Messages” app on Mac
  2. Pull down the “Messages” menu and choose Preferences
  3. Go to the “iMessage” tab
  4. Choose the “Sign Out” button
  5. Sign out and back in to iMessage on Mac

  6. Quit Messages
  7. Relaunch the Messages app and return back to iMessage preferences and this time sign back into the Apple ID for iMessage

6: Make Sure Message Forwarding is Enabled on iPhone

If you use an iPhone and Mac, make sure that you have enabled SMS text message forwarding and relay for iPhone and the Mac so that the Mac can relay SMS text messages to and from the iPhone through Messages.

If that feature is not enabled, you will not be able to send SMS text messages from the Mac, meaning you wouldn’t be able to message Android users for example.

7: Check to Make Sure iMessage Works on iPhone / iPad

If you have an iPhone or iPad as well as the Mac, make sure that iMessage is working on that device as well.

If the iPhone or iPad is experiencing issues or showing waiting for activation error or similar, it’s also possible there are issues with Apple iMessage servers being down.

iMessage is working, but not syncing with other devices properly

Sometimes iMessage works, but you’ll find that messages are not always syncing between the Mac and iPhone or other devices. If that’s the case, learn how to fix iMessage not syncing between Mac and iPhone properly here.

iMessage works, but seeing “Not Sent” errors

If you have iMessage working on the Mac but you are repeatedly seeing Message Not Sent errors, go here to read about resolving that issue.

Did the above troubleshooting methods resolve iMessage issues for your Mac and get iMessage working again as expected? Do you have any other tips, tricks, or advice to resolve iMessage and Messages app problems on the Mac? Share your experiences, thoughts, and tricks in the comments below.

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Posted by: Paul Horowitz in Mac OS X, Tips & Tricks, Troubleshooting

6 Comments

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  1. JB says:

    Absolutely NOTHING fixes Messages on my Macbook Pro. It works on my iPad, my iPhone, the iMac, and for the Macbook Pro? “user name or password is incorrect”.
    No. It really is correct. The other comments are not encouraging. There’s a software problem.

  2. SummChick says:

    Tried all this multiple times since this started about a month ago. Most of my messages are syncing fine both SMS and iMessages. I have identified 4 contacts (both iOS and Android) that I can send to on my MacMini (and see the sent message on my iPhone) but replies don’t come through to my Mini. My chat history is also missing on my Mini for these contacts. Oddly, the notification flag on the Messages icon on my Mini does pop up when I receive messages from these contacts even though I can’t read them on that device. If I read them on my iPhone, the notification flag on my Mini clears. It’s very odd.

  3. Dennis says:

    Messages on my MacBook Pro (mid 2012) simply stopped working last week. Fine one day, useless the next. Tried all the suggestions offered here without success. App says I have to login. Results in “An error occurred during authorization”. Works fine on my iPhone with the same login credentials. Skipping the login, I can open preferences, but again, to continue, I am asked to login with the same results. Unable to check the “disable this account” box. Very frustrating.

  4. Tomoyo says:

    The majority of these steps require you to open Preferences in the Messages app, however I can’t even get that to open. Selecting it from the Messages submenu results in zero response from the program. My Messages app is currently only capable of displaying the conversations window and then being stuck on the last selected conversation; no ability to input text, select a different conversation, or even scroll through the open one. No other program on my MacBook is having these kinds of issues.

  5. Andreas says:

    I use whatsapp for all messaging.

  6. RM says:

    Ah, Messages is a finicky and moody beast on the desktop. I don’t understand why it sometimes works and other times not. Ironically, my computer internet connection is a 1 gig line, whilst my wifi is under 100Mb, yet the phone always works.

    I have not found any cure-all for the issue, it usually comes in waves and goes away on its own.

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