iMessage is an incredible instant messaging service which let two Apple users communicate for free. It is different from normal messaging services as you can send/receive messages to/from all of your Apple devices that share the same Apple ID. What it means is that you can send a message to your friend from a Mac Book and receive the reply back on your iPhone or vice versa.

This feature enables you to continue chats or receive important messages even when you are not around the device from which you initiated the conversation. This feature is also proving to be a massive help for people at workplaces. You can always remain connected with your colleagues no matter where you are, all you need is your iPhone to be synchronized with your office’ Mac Book.

Remember, the keyword in all that description is synchronization. The moment your devices get unsynchronized, every other thing is pretty much useless. Apple users lately have been found complaining about how iMessage for Mac Stops Syncing after the updates. Apple also knows that this issue is occurring on quite a few Mac devices. Therefore, both Apple and Mac experts have provided their expertise to address this issue.

If you are one of the Mac users who are facing this issue then don’t worry. You will be able to learn some methods through which you can stop this issue occurring in your Mac Book. Have a look for yourself.

1. Turn Off/On your iMessage Feature on your iPhone

This is the most basic step among all. This method is quite similar to your phone facing a problem and you simply opt to restart it and it starts working. Every major iOS update disrupts the iPhone/iPad/Mac for few hours. The system takes time to adjust to new changes which could affect the settings of your device. Therefore, you should toggle off your iMessage feature for 30-40 seconds and then toggle it on. Here is how you can do that.

1. Go to the Settings of your iPhone.

2. Locate the option Messages on your iPhone and tap on it.
3. You will find the option iMessage toggled on. Switch it off for 30-40 second and then switch it on again.

4. Then restart your device and check if your iMessage is synched on your Mac.

2. iMessage Sender and Receiver Setting

It is highly unlikely, yet possible that your sender/receiver iMessage sending could have been affected by the software update. There could be an issue with your phone number or Apple ID that might be disturbing your synchronization. To check that:

1. Go to the Settings of your iPhone.

2. Locate the option Messages on your iPhone and tap on it.

3. Locate the option Send and Receive.
4. Then double check if your phone number and Apple ID is correct.

5. Once checked, toggle off/on your iMessage feature once again.

You can also check that on your Mac Book. For that:

1. Open the Message App on your Mac Device.

2. Tap on the option Messages.

3. Then Tap Preferences.

4. Now check details for YOU CAN BE REACHED BY MESSAGE AT. If they are wrong, edit them, and your Mac will automatically synchronize with your iPhone.

3. Send iMessage through Mac

It is very possible that your iPhone adjusts to the new software updates while Mac takes a little more time. What it means is that both these devices are not on the same wavelength when it comes to software.

To bridge this gap, simply use your Mac device to send out an iMessage. Keep continue the conversation from Mac for half an hour and then switch to iPhone. It might trigger the automatic synchronization. It will also prompt syncing your iMessage properly across all devices as well.

4. Reset Network Settings on Both Devices

Network setting plays a pivotal role in iMessage service. Most iPhone users have experienced different issues after an iOS update and network settings are one of them. Don’t worry, these are just easy-to-fix issues which do not have any adverse impact. However, it still could be one of the issues and therefore calls for a precautionary measure.

Reset Network Settings on iPhone:

1. Go to the Settings.

2. Tap on the option General.

3. Scroll down and tap on the option Reset.

4. Tap on the option Reset Network Settings. Enter your passcode and let the process complete.

Reset the Network Settings on Mac:

Unlike iPhone, Mac Book requires a bit more effort and care in order to get its network settings to reset. Beware that you must follow each and every step closely as missing any of them can worsen the situation. Have a look at it for yourself:

1. The first step would be backing up your Mac device as resetting it may delete some or all of your data.

2. Now close down all the running apps on your Mac Book.

3. Also, switch off your Wi-Fi.

4. You will be able to locate the option Finder at the bottom of your screen. Click on it.

5. Now press Command+Shift+G Keys together to open Go to Folder Window.

6. Type in /Library/Preferences/SystemConfiguaration/ and hit Go.

7. Now you will be able to see a list of Configuration Files. Select all network-related files from this list.

8. Press-hold the Command key and Select these files: com.apple.airport.preferences.plist, com.apple.network.eapolclient.configuration.plist, com.apple.wifi.message-tracer.plist. NetworkInterfaces.plistpreferences.plist, Preferences.plist

9. Once selected, copy paste them on your desktop.

10. Now, click on your Apple logo on Mac Book, and click restart from the menu.

11. Your Mac will shut down and restart. Switch on and connect your Wi-Fi again and see if your iMessage synchronize.

5. Synchronize Mac and iPhone via iTunes

It is understood that iTunes let you sync content such as albums, songs, movies, podcasts, books, photos, contacts and calendars. There is no mention of iMessage on that list. However, synching these features through iTunes automatically syncs your iMessage feature as well. Follow these steps to synchronize your iPhone to Mac via iTunes.

1. Connect the iPhone to Mac through a charging cable.

2. You will be able to locate your device on the upper-left corner of the iTunes screen. Click on it.

3. You will be able to choose the type of content (pictures, albums, songs, etc.) Just below the Settings on the left of your screen.

4. Select the checkbox next to each content you want to sync. You can choose various content options or only one option as synchronization will happen anyway.

5. Click the option Apply on the lower-right corner of your screen. You can further click on the option Sync If synchronization doesn’t start automatically.

6. Leave your devices connected for 15-20 minutes so they can sync properly.

Your iMessage feature is likely to work fine on both devices as soon as the process is completed.

6. Third-Party Apps

Third-party apps should only come into play after everything else fails. iOS is a well-structured operating system that masters the art of solving issues on its own.

However, if you still have to utilize the third-party option then look for a reliable app. it would be perfect if you manage to find a free one. There are some quality apps (paid ones) that provide step by step guide for every iPhone/Mac related issue.

There are also some apps (paid mostly) that makes the synchronization between the devices easy. These apps further help you to back up your data quickly. Some of these apps also allow restoring a partial backup to save time and storage.

Conclusively, these apps are worth the money, but you should still consider them once you have tried the methods mentioned above.