@PhilipDAth Thanks for response.   Sorry for the late update on this thread. The issue turned out to be one of the intermediate certificates was not issued by Global CA. So we created the entire chain of certificates again with proper Global CA and it resolved the issue.   Suggestions: 1. Ensure certificates are issued by Global CA. 2. If there are multiple chain of certificates then present all chain of certificates until root (server certificates + Intermediate certificates + root certificates) while connecting to Meraki.   ... View more