Hey Kitty77,
This could be due to a number of things, but first I'd suggest confirming if you or your client devices are losing Internet connectivity when the alert is seen within the Meraki GO app.
The app's communication with the device may be the issue, resulting in a false positive error message. Sometimes we find that clearing the app's cache can help here if there is no client impact experienced in regards to reaching the Internet. Are you already troubleshooting with us on a case to ensure we're taking the best next steps?
Regards,
