When I connect within local area network everything goes fine. I can connect and work with my repository. When I try to connect from the outside world I just can connect to VaultServer (status is "connected") and choose the repository but after that I get scary looking message:

"The Vault server could not be contacted to perform the operation. Your network connection to the server may have been interrupted. Please verify your network settings using the Options dialog under the Tools menu in the Vault GUI Client."... and then something about 403 Error: Access Forbidden
This, I think, is very similar (if not the same) problem a user nicknamed "marcorusso" had (http://support.sourcegear.com/viewtopic.php?t=2680) but the thread does not provide any help.
I just wonder if someone has solved this issue.
Thank You
Maciek