Your connection is not private on Android

An outdated root store on older Android builds rejects chains that current desktop browsers accept.

Why it happens on Android

An outdated root store on older Android builds rejects chains that current desktop browsers accept.

The fix on Android

Set date and time to automatic, update Android System WebView and Chrome, then retry. If only old devices fail, reissue the certificate against a longer-established root.

If that didn't fix it

Android has its own failure mode, but Your connection is not private has a wider set of causes. The most common one overall is: The certificate expired (NET::ERR_CERT_DATE_INVALID).

Renew the certificate and reload the web server.

Check your own domain

Running the check from outside your device separates a real certificate problem from a local clock or network issue in one step.

Frequently asked questions

Why does Your connection is not private happen on Android?

An outdated root store on older Android builds rejects chains that current desktop browsers accept.

How do I fix Your connection is not private on Android?

Set date and time to automatic, update Android System WebView and Chrome, then retry. If only old devices fail, reissue the certificate against a longer-established root.

What does Your connection is not private mean?

Chrome's full-page warning shown whenever certificate validation fails. It is not a single error — the real cause is the NET::ERR_CERT_* code printed underneath it, and that code tells you which of expiry, trust, or hostname is wrong.