Solution 3: Reset NVRAM
This setting is related to storage, Where NVRAM or PRAM is a small amount of memory that used to store specific configuration and helps to access quickly for Mac for a smoother and faster experience. NVRAM stands for non-volatile random access memory and PRAM stand for Parameter Ram, Troubleshooting is going to same for both NVRAM and PRAM setting. NVRAM used to store configuration for Sound Volume, Display resolution, startup-disk, time-Zone and new kernel panic details.
How to reset NVRAM
First shutdown your Mac, turn on and press and hold four keys (KEYS: Option, Command, P, and R)immediately. You can release the keys after 20 seconds of pressing, and your Mac Might appear to restart.

Solution 4: Disable and Re-enable iMessage on Mac.
Sometimes, there is no significant error, but it faces some error during launch or startup, but it can be fixed with restarting your Mac.
- Open the “iMessage” app on your Mac.
- Pull down the “Message” menu and choose “Preferences.”
- Now, Go to the “iMessage” tab.
- Then, check your Apple ID.
- Uncheck “Enable the account.”
(Your account appear on Apple ID.)
- Then, checked again to “Enable this account.”
Sign-out and Sign-in to iMessage on Mac
It seems like there is a syncing issue with your iMessage on Mac with your device. You can try to resolve by signing out and signing back into iMessage on Mac.
How to Sign-Out and Sign-In to iMessage on Mac?
- Open the “iMessage” app on your Mac.
- Pull down the “Message” menu and click on Preferences.
(Placed on the top-bar of Menu on iMessage.)
- Choose the “iMessage” tab.
- Click on “Sign-Out” button.
- Exit the “iMessage” ap from your Mac.
- Relaunch the iMessage app.
- Pull down the “Message” menu and click on Preferences.
(Placed on the top-bar of Menu on iMessage.)
- Sign-In with your Apple on iMessage App.
Note: you can also force quit to exit the Message app on Mac. You will find the force quite at the same place where you find settings, select the message and click force quit.
Solution 5: Check your iMessage is Active or Not?
You have to enable iMessage to sync the iMessage with Mac, Which means iMessage need to enable on both of their devices.
How to enable iMessage?
- Open the “Setting” app your iPad or iPhone.
- Scroll down and find Message option.
- Turn on iMessage toggle.
(It is already enabled, click Turn disable and then again Turn to enable.)
- That’s it.
Solution 6: Check Send/Receive settings
You can use this setting to send as SMS when iMessage is unavailable or working on your Mac.
- Open “Setting” app on your iPhone.
- Scroll down and find “Messages.”
- Then, Tap on “Send & Receive” option.
- Check your Apple ID under “You can be reached by iMessage at.”
(It includes your Phone number and emails address.)
- It is not your Apple ID then Sign-out and again Sign-In with your Apple ID.
Solution 7: Check for proper syncing with other devices.
Sometimes iMessage Not Working because you didn’t sync your device with Mac or might be not synced with iPhone.
On iPhone or iPad
- Open the “Setting” app on your device.
- Tap on “Messages.”
- Scroll down and Choose “Receive At.”
(Check your Apple ID followed by phone number or email address.)
- Tap on “Use your Apple ID for iMessage” button.
(Which placed on the top and Sign-in with your Apple ID.)
- Exit Setting and Check out on your Mac.
On Mac
- Open the “iMessage” app on your Mac.
- Pull down the “iMessage” menu and choose “Preferences.”
- Tap on “Action.”
(Here you have to check your Apple ID that you used in iPhone.)
- Confirm and “Enable this Account.”
- That’s it.
Note: If you are not sure is your Apple ID is syncing or syncing to another device, then you can visit APPLEID.Apple.com to verify the Syncing device with your Apple ID. Whereas, All you have to do is to Log-in with your Apple ID and check your details. Check the details that you have seen in iMessage and Messages account.
Solution 8: Rebuild Keychain access on Mac
Reportedly, some time this issue occurs for Mac users because they are unable to send a message from Mac.
- Click on “File” and “Lock the Keychain Login.”
- Then, You need to “Unlock” again with the help of your “Password.”
- That’s it.
Solution 9: Set Date and Time to automatic on Mac.
If you have a different account on iPhone and Mac, it creates conflict to sync, but you can resolve with the Automatic Date and Time and it Will fix iMessage Not Working.
- Click on “Apple Menu”
- Choose “System Preferences”
- Select “Date & Time”
- Tap on “Set Date and Time Automatically”
(It will then Select the Date, Time and Clock to automatically using current location.)
Tips to Fix: iMessage Not Working on Mac
Check for Message Forwarding is Enabled on the iPhone or iPad.
You have to ensure that you have enabled SMS text message forwarding for iPhone and the Mac. It is essential because you were allowing iMessage to replay SMS text message without your iPhone through Message. If this not enabled on your iPhone, then you have to enable because you can’t enable this setting from Mac. Not to mention, you can’t enable Android users.
Check your iMessage is Working on iPhone or iPad.
To receive or reply using iMessage on Mac then your iPhone and iPad need to active. Whereas, If you still get an activation error, then there might be an issue with the Apple iMessage server. You need to wait for a couple of minutes and try again because that time Apple might working on their server.
Check iMessage & iCloud Setting
Sometimes, it an obvious error if you are getting “Not Send” promote error then Log-in to iCloud and enable the Message and Configure from the Message app on your iPhone. Also, try again by clicking on ignore as many times it appears. Eventually, the error message disappears, it happens because sometimes it un-synced iMessage, but once it synced again, it starts working as usual.
Check for Third-Part Software.
If you have installed a firewall, Security, VPN or any other third-party networking software, then it could block any of the network ports used by iMessage. Then you have to disable that software and then try again using your iMessage.
Test with another user account on your Mac.
Sign-in using another Apple ID, you can add another Apple ID from Administrator account if the issue doesn’t happen with other Account than there might be changes in your account setting or files. Check your account and setting. If you find the same result over then, then try using Safe mode to resolve the issue or check for software or hardware issue.
Hopefully, we help with your problem, and we assume that you successfully resolve your issue. If you have any other way to solve this issue, then let us know in the comment section down below. Thanks for being with us. Stay tuned.