iPad no longer synced for Messages

Before deleting anything or signing out of iCloud, I would check the settings on the iPhone first. If the messages are still present on the iPhone, your messages have not been deleted. The issue is most likely the connection between the iPhone and iPad.

On the iPhone, go to Settings > Messages > Text Message Forwarding and make sure your iPad is enabled.

Also check that both devices are signed in with the same Apple Account and that Messages in iCloud is enabled on both devices.

If Messages are still not appearing on the iPad, restart both devices and give them a few minutes to sync.

I would not delete the Messages app, sign out of iCloud, erase the iPad, or reset network settings at this stage. Those steps are unnecessary unless the basic settings have been checked first, and if the messages are still safely stored on the iPhone, there is no reason to risk making the situation more complicated.

If you have an iPhone - and both iPad and iPhone are signed-in to iCloud with the same AppleID - to send SMS/MMS messages (green bubbles) from your iPad you must explicitly enable/verify Text Message Forwarding for your iPad on your iPhone...

On your iPhone:

Settings > Messages > Text Message Forwarding - set to ON - and explicitly enable your iPad from the list of devices.

Also ensure that Messages in iCloud is enabled on both your iPhone and iPad:

Settings > [Your Name / AppleID] > Messages - set to ON

Welcome and thank you for reaching out. 🤗

End-to-end encryption cannot be disabled and has nothing to do with your issue.

Try the following steps:

• Disable any VPN connections and restart your iPad or tell Siri: "Restart".
• Learn how to update your iPad to the latest version of iPadOS
• Learn what to do if your iPad won’t update.

Sign in issue:

Learn what to do → If you can’t turn on or sign in to iMessage.

Connection issue:

Learn what to do → If you can't send or receive messages.

Need more help?

• Contact Apple Support if you still can't send or receive iMessages
• Contact your carrier if you still can't send or receive SMS, MMS or RCS messages

Additional help:

• United States: 1-800-APLCARE.
• Contact Apple Support.
• Get Support.

Good Luck! 👋🏼😉

Smiliñ 😎 Brian | Community Volunteer