From each active SOAM, select Diameter > Maintenance > Applications.
The Diameter > Maintenance > Applications page appears.
Under DSR Application Name, select each CPA row.
To select more than one row, press and hold Ctrl while you click each row.
Click Enable.
Verify the application status on the page.
The Admin State, Operational Status, Operational Reason, and Congestion Level in each of the selected rows should have changed respectively to Enabled, Available, Normal, and Normal.