A node that has not received the certificate correctly must be re-registered.
Do the following:
Open the QMC: https://<QPS server name>/qmc
Select Nodes on the QMC start page or from the Start drop-down menu to display the overview.
Select the node you want to redistribute, displayed with Certificate not installed in the Status column.
The Redistribute button in the action bar goes active.
A dialog with your authorization password appears when finished.
Copy the authorization password and follow the instruction in the dialog to authorize the certificate on the host name machine.
If successful, the Certificate setup dialog displays The service was successfully unlocked.
You have now redistributed and authorized the certificate to make the node operational.