Update: CONNECTION Client 10.00.17.10 has been released which addresses the offline usage issue. The release notes explain what else has changed.
A bug has been discovered in CONNECTION Client 10.00.16.09 and 10.00.16.10 that is preventing users from accessing products when disconnected from the Internet. While the issue will be addressed in the next version of CONNECTION Client, the issue can be resolved by downgrading to 10.00.15.12. Below are instructions for obtaining an installer for this version:
Banana SW at its best.
Bentley policy for punishing(invoicing) users helps to sell such solutions. Conspiracy.