MAPIHow to Fix WhatsApp Messages Not Sending or Receiving
WhatsApp messages can stop sending or arriving when the phone loses internet access, the app is out of date, device settings interfere with the connection, or a linked computer loses sync. A clock beside a message usually means it has not left your phone yet, while one check mark means it was sent but has not reached the other person’s device. Use the steps below to separate a connection problem from a problem with one chat, your phone, or a linked device.
First confirm that your phone has a working internet connection, then switch between Wi-Fi and mobile data and restart WhatsApp. If the problem continues, update WhatsApp, check your phone’s date and time, free storage space, and relink any affected WhatsApp Web or Desktop device.
Things you'll need
- Your phone with WhatsApp installed
- A working Wi-Fi or mobile data connection
- Access to your app store
- Your primary phone if you use WhatsApp Web or Desktop
Check Your Internet Connection
Open a website or another online app to confirm that the phone actually has internet access. In WhatsApp, a clock beside a message usually means it has not been sent from your phone yet. Turn Wi-Fi or mobile data on if needed, move to a place with a stronger signal, and try sending a short text message again.
Switch Networks and Restart WhatsApp
If the phone is online but WhatsApp still does not work, switch from Wi-Fi to mobile data or from mobile data to Wi-Fi. You can also turn airplane mode on briefly and then off to reset the connection. Close WhatsApp completely, reopen it, and send another short message. If the problem affects the whole phone, restart the device as well.
Update WhatsApp and Check Phone Time
Open your app store and install any available WhatsApp update. Also make sure the phone’s date and time are correct, preferably using the automatic date and time setting. An outdated app or incorrect device time can interfere with WhatsApp connections. Reopen the app after making changes and test both sending and receiving.
Test More Than One Chat
Send a short message to another trusted contact or group. If other chats work normally, the problem is probably limited to the original conversation rather than your whole WhatsApp connection. The other person may be offline, their phone may be unavailable, or a group may allow only admins to send messages. A single check mark can remain when a message has left your phone but has not yet reached the recipient’s device.
Free Storage and Check Media Access
If text messages work but photos, videos, voice notes, or documents fail, check that the phone has free storage space and that WhatsApp has the permissions it needs to access photos or files. Try sending a smaller file over a strong Wi-Fi connection. On Android, clearing the WhatsApp cache can also help with temporary app problems, but do not clear app data unless you understand how it affects local data and backups.
Fix WhatsApp Web or Desktop
If messages work on your primary phone but not on WhatsApp Web or Desktop, refresh or restart the linked app, confirm the computer has internet access, and log out and back in if needed. If the problem continues, unlink the computer and link it again from your primary phone. Keep WhatsApp updated on both devices, and remember that linked devices can disconnect if the primary phone is not used for an extended period.
Reinstall WhatsApp as a Last Step
If WhatsApp still cannot send or receive messages after the connection and device checks, confirm that your chats are backed up if you need to preserve them. Then remove and reinstall WhatsApp from the official app store and complete the normal phone-number verification. Test a simple message before restoring other troubleshooting changes. If the problem remains across different networks after reinstalling, contact WhatsApp support or your mobile provider.
Tips & common mistakes
Tips for best results
- Use a short text message for testing first because it separates basic connection problems from problems that affect large media files.
- If WhatsApp fails only on office, school, or public Wi-Fi, try another network because some managed networks can restrict WhatsApp traffic.
- Keep the primary phone and linked computers on current WhatsApp versions because updates often include connection and synchronization fixes.
- Check your primary phone when linked-device history looks incomplete, because not every old message may be available on every linked device.
- If many apps are also failing to connect, troubleshoot the phone or internet connection before changing WhatsApp settings.
Common mistakes
- Reinstalling WhatsApp before checking your chat backup can risk losing local chat history that was not safely backed up.
- Assuming a single check mark proves that you were blocked is unreliable; it can also mean the recipient’s device is offline or unavailable.
- Clearing WhatsApp app data instead of only the cache can remove local app information and force setup again.
- Testing only with a large video can make a weak connection look like a complete messaging failure; test a short text first.
- Changing many network and phone settings at once makes it harder to identify which change solved the problem.
Frequently asked questions
What does the clock icon beside a WhatsApp message mean?
It usually means the message has not left your phone because WhatsApp does not currently have a working connection.
Why does my WhatsApp message show only one check mark?
One check mark means the message was sent from your phone but has not yet been delivered to the recipient’s device. Their phone may be offline, switched off, or temporarily unavailable.
Why can I send text messages but not photos or videos on WhatsApp?
Media failures are often related to a weak connection, limited phone storage, file size, or missing photo and file permissions. Try a smaller file over Wi-Fi and check storage and permissions.
Why does WhatsApp work on my phone but not on my computer?
The linked Web or Desktop session may have lost its connection or synchronization. Restart it, check the computer’s internet connection, then unlink and relink the device if needed.
Should I reinstall WhatsApp if messages are not sending?
Use reinstalling as a later troubleshooting step. First check the internet connection, restart the app and phone, update WhatsApp, and confirm device settings. Back up chats before reinstalling.
Can the wrong date and time stop WhatsApp from connecting?
Incorrect phone date and time can interfere with app connections. Use the phone’s automatic date and time setting when possible.
Written by Mapiance Editorial Team
The Mapiance Editorial Team researches, writes, reviews, and maintains practical guides and explainers for MAPIANCE.
Published Aug 30, 2026 · Updated Sep 30, 2026