What do I do if I can't (can not) connect to my vps with SSH Client?
Simply log into your vps control panel and make a note of the CONSOLE: details.
You can then use these details to log into your vps via the main node (network does not need to be functioning on your vps for this to work).
For your username you must use your vps control panel details (remove the . from the username) and your password is your usual root password.
This will enable you to administer / fix your vps should you not be able to log in via SSH.