Diagnosis

You can troubleshoot the system environment for any system to verify if the conditions are conducive for scanning it, using the Diagnose function. From the Admin tab --> Diagnosis link, you can enter the system names, select the credentials for the systems, specify the Telnet and SSH ports (for Linux machines) and click on the Diagnose button in the bottom of the screen.

Security Manager Plus's Diagnosis of the System environment includes performing the following tests on the target machines :

System Checks for the system where Security Manager Plus is running

For Linux systems, if samba-tng package is installed or not (this package is important for a Security Manager Plus server running on Linux to communicate with Windows systems)
For Linux systems, if root privileges are available for Nmap to run
If there is internet connectivity - to access the Security Manager Plus vulnerability database from our site and to download patches from vendor websites
If there is a firewall present

Other tests on target systems

Ping - a 'ping' command is executed from the Security Manager Plus server machine to the target machines, so see if they are alive in the network
OS Type - detects the OS information of the host being diagnosed
Registry Service check (Windows machines only) - To check if the registry service is running in the target machine and if the service can be accessed remotely from the server machine. Also to check if the credentials supplied (username and password) have enough privileges (read administrator rights) to access the registry
Shares check (Windows machines only) - To test if the ADMIN$ share is enabled in the target machine
Service creation check (Windows machines only) - To test if a service can be created in the remote machines to carry out patch detection operations
Login Test (Linux machines only)- To check if the credentials supplied (username and password) for the Linux machines can be used to successfully login to the target machines and if the telnet & ssh services are running in the specified ports

The results of these test give an idea on the environment of the target system. If any of the tests fail, scanning may fail. You should take corrective measures to address the issues, and retry system scanning. Note that you can enter multiple systems and diagnose them at one go.