SSH connection shutdown

[nsrini]

Hi,
This issue started all of sudden. Now I am unable to connect. As soon as I start the script, it shuts down immediately. The host available, I am able to do ssh.

[12:00:29] INFO: SSHExec initializing ...
[12:00:29] INFO: Session initialized and associated with user credential
[12:00:29] INFO: SSHExec initialized successfully
[12:00:29] INFO: SSHExec trying to connect @
[12:00:30] INFO: SSH connection established
[12:00:31] INFO: SSH connection shutdown

thanks
Srini