I've got a vSphere 5.5 Essentials Kit; One of the hosts, a Dell R410, is running vSphere 5.5 and as of yesterday it is unresponsive to any of the management tools. I've tried the following:
Web interface: Down
SSH Port: Connection Timeout
vCenter says disconnected
vSphere Client: An unkown error occured. (The client could not send a complete request to the server. (The underlying connection was closed: An unexpected error occured on a send.))
Local terminal: I tried to log in (entered my credentials), but then the login panel locked. Unresponsive to keyboard input.
All my virtual machines are still running and i don't see any other way out than to shut down all vm's remotely using ssh/rdp and than hard reset the server, but that's my last option.
Any suggestions on how to 'revive' my management interfaces?