Why can I not see all the domains in SystemView?
Domains can be turned of for various reasons.
The most common reason is that an end user is not given access to a domain. To get access to a domain you are advised to link with the change manager linked to your work place. They will guide you through the process.
A domain can also be turned of when it is not available for your setting.
A domain can be turned of due to technical issues. A banner will be visible to inform you.
These are some examples.