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Troubleshooting: device keeps disconnecting

Common reasons a linked number drops and how to fix it.

If a device shows as offline or messages stop sending, work through these checks.

Checklist

1. Make sure the linked phone is powered on and online.
2. Confirm WhatsApp is still open and the number isn’t logged out.
3. In Devices, open the device and re-scan the QR code to relink.
4. Avoid using the same number in multiple automation tools at once.
5. Check Device Health for any warnings on the number.

If it still won’t connect, remove the device and add it again from scratch.

Related guides

• Fix the “Invalid or inactive API key” error
• The app won’t load or shows a blank screen

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