Symptoms
When going to the Monitor > Machines page I am not able to see the machine and machine group pivot content.
Cause
This may be due to a network issue or even if after reloading the page it persists, this may be because you do not have the required dataverse role to access the machines and machine groups pages.
Resolution
Contact your dataverse system administrator to give you the required role. Here is a link to the documentation for more information about the different security roles.