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WhatsApp Not Connecting or Messages Stuck on One Tick

Short answer: One gray tick means a message was sent from your phone but not delivered. If nothing sends at all, your phone may not be connected.

TL;DR: quick fix

Check if WhatsApp is down for everyone.
Make sure your phone has a working internet connection; try turning airplane mode on and off.
Check that WhatsApp is allowed to use mobile data and background data in your phone settings.

Is WhatsApp down?

Before you change settings, check Meta Status. If there's an outage, wait it out.

How to fix it: step by step

Check whether WhatsApp is down for everyone: look at downdetector.com or WhatsApp's official X account and recent posts from the service's official status account before changing anything on your device.
Make sure your phone has a working internet connection; try turning airplane mode on and off.
Check that WhatsApp is allowed to use mobile data and background data in your phone settings.
Restart your phone and update WhatsApp.
One tick on a single chat usually means the recipient's phone is offline or they have blocked you. It is not always a problem on your end.

FAQ

What do the ticks mean?

One gray tick: sent. Two gray ticks: delivered. Two blue ticks: read (if read receipts are on).

More WhatsApp fixes

Last checked Oct 2026 against the official help page: WhatsApp Help Center. Menus can differ by app version; follow the official page if a step doesn't match.