I'm encountering a 'TLS Error' when connecting to my MongoDB Atlas cluster. What are some common causes?

Several factors can cause TLS errors. These include: 1) Incorrect TLS version configuration in your application. 2) Mismatched TLS certificates between your client and Atlas. 3) Firewall issues blocking TLS traffic (port 27017 by default). 4) Outdated MongoDB drivers or libraries. 5) Problems with the Atlas cluster's TLS configuration itself (though less common).