Hi Paccers,
If you have not already, I would recommend raising a case with Meraki support so they can assist with troubleshooting this issue to help determine whether these are genuine alerts or what may be causing them to appear.
Details on how to raise a case through dashboard or to call the support line can be found within the 'Get help & cases' page which is accessible in the ? icon menu in dashboard.
If you found this post helpful, please give it kudos. If my answer solved your problem, click "accept as solution" so that others can benefit from it.