Its possible the entire service, or aspects relating to Messenger, is offline or experiencing errors.
If this is the case, all you’re free to do is wait it out.
Quit and re-open Messenger.
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Completely terminate the app, dont just minimize it.
Check your internet connection.
If those sites also don’t work, then this is a bigger problem than Messenger not sending messages.
You could reboot your router or contact your ISP for help.
double-check you’re using the official app.
Turn off Wi-Fito switch to a mobile data connection.
Switch to a Wi-Fi connection.
Your cellular internet provider could be down or congested.
Toggle Airplane Mode on and off.
This will reset your internet and cellular connections and has been known to fix Facebook Messenger not sending messages.
A quick restart can fix several app and system issues.
The process for restarting varies between devices: iPhone [Restart an iPhone].
sign out of Messengerand then log back in.
This might be enough to fix the problem.
This can sometimes get rid of send errors and bugs.
Turn off your VPN.
Update the Messenger app.
The latest version might include bug fixes that address this issue.
Check your gadget’s app store for the update.
Also take this time to check you web internet tool for an update.
upgrade your operating system.
look to see if youve been unfriended on Facebook.
Most people restrict Facebook messages to friends only.
If you suddenly cant connect with someone via Messenger, they may have unfriended you.
find out if youve been blocked.
Clean up your Facebook profile and behavior.
Disable Low Data Mode on your iPhone.
This can prevent Messenger from connecting to Facebooks servers.
Turn on Background App Refresh.
The app might need to run in the background for your messages to fully send.
Android smartphones and tablets havedifferent background app configs.
dump the cache in the Messenger app.
It’s also possible toclear your web web client cacheif you’re using Messenger on a computer.
Send a message on the Facebook website.
Resetting your devices online grid controls can fix a variety of internet connection problems on multiple apps.
Why Is Facebook Messenger Not Working?
If you could’t, you should go toFacebook’s hacking support pageto sort it out.
when you’ve got control of your account,turn on two-factor authorizationto help prevent future issues.
You should also check the app configs by going toMenu>configs/gear>Notifications & sounds.
If notifications appear to be on everywhere, check for an update and cycle your unit.
