CM Crashing When Offline and Checking Certificates

Issue

If a Connection Manager end user is using untrusted certificates in their environment while they are offline, CM will try to reach out to an MS DNS to confirm the certificate. This happens even after a DNS sinkhole is set on that domain through the host file. But because there is no outbound internet connection, CM pauses while waiting indefinitely for a confirmation that will never come, eventually freezing and crashing.

Resolution

To resolve this issue, edit the local group policy using the information in the article, An Automatic Updater of Untrusted Certificates for Windows.