I need to use the client in a hostile network

Some hostile country might block our authentication/information servers or VPN servers.
To bypass the block, first login to the service from a friendly network access, with the "Remember" option ticked. The client will save your credentials.
After that, launch the client and enter the service from the hostile network without touching the login credentials.
If the client still fails (it tries to retrieve information from many different mirrors located in different countries), you are informed that you can still connect with the latest available information. In this case, the servers list may not be updated. The client will automatically search for a working server. At the first connection to any server, the client automatically updates other information (like the servers list itself).
This feature is also a warranty in case our authentication servers are under attack.