I have just installed Qlik Sense (February 2020) and the License Monitor is failing to reload. Operations Monitor is fine. Checking the error log (attached) the reload is failing after the connection 'monitor_apps_REST_license_overview' with the following error:
Error: HTTP protocol error 403 (Forbidden):
The server refused to fulfill the request.
I'm sure that this is something simple in the setup that I missed and someone with more experience will be able to stop the problem right away.