[General] Cannot connect using Secure Shell ?

1. If you cannot connect using SSH, you may have exceeded the maximum number of concurrent Telnet/SSH sessions permitted. Try connecting again at a later time.
2. Be sure the control parameters for the SSH server are properly configured on the switch, and that the SSH client software is properly configured on the management station.
3. Be sure you have generated both an RSA and DSA public key on the switch, exported this key to the SSH client, and enabled SSH service.
4. Be sure you have set up an account on the switch for each SSH user, including user name, authentication level, and password.
5. Be sure you have imported the client’s public key to the switch (if public key authentication is used).