Q. Why did I receive an update server message in Respondus Lockdown Browser?

The error indicates that either the computer or network is blocking access to the Respondus servers. When LockDown Browser starts, it must make connection to those servers but if they are blocked, the session will not be permitted to proceed.

Here is a helpful article with troubleshooting steps: https://support.respondus.com/support/index.php?/default_import/Knowledgebase/Article/View/195/0/