We'd like to say thanks to everyone participating in beta-testing.
Among with resolving the issues you are facing & posting, we see that one important feature need to be implemented: proxy support.
We are planning this feature to one of the future releases, and you are welcome to post any other feature requests as comments to this post.

Calendar applications are irreplaceable for people who are aimed at success in their business and life. These applications allow planning the business time and collaboration with other people, creating reminders for important events, organizing meetings – and this enables you to use your time more efficiently. Moreover, psychologically it’s much more comfortable to work not in the disorganization and chaos, but in the more or less defined and clear conditions.