3536237 - Job & Automation Monitoring activation failure or grey in SAP Focused Run

Save of data collection activation for the filter failed in the Job & Automation Monitoring. The Simple Diagnostics Agent log on the data collection host shows the following errors:

Error 1
ERROR [jobruntime Worker <***>.JOB_ABAP_RUNTIME_OP_<server>] com.sap.solman.agent.cfwk.push.RestPushClient Pushing data failed! Status: 401
ERROR [jobruntime Worker <***>.JOB_ABAP_RUNTIME_OP_<server>] com.sap.solman.agent.cfwk.collect.AbstractCollector <***>.JOB_ABAP_RUNTIME_OP_<server>: com.sap.solman.agent.cfwk.PushException: HTTP POST request failed: statuscode=401
ERROR [jobmetadata Worker <***>.JOB_ABAP_METADATA_<server>_<******>] com.sap.solman.agent.cfwk.push.RestPushClient failed to retrieve csrf token for user=FRN_AJM_<CID> URL=http://<host>:<port>/sap/bc/rest/ajmmetadatasrv/data: status code=401

Error 2
ERROR [jobmetadata Worker FR1.JOB_ABAP_METADATA_<server>_<******>] com.sap.solman.agent.cfwk.collect.AbstractCollector <***>.JOB_ABAP_METADATA_<server>_<******>: com.sap.solman.agent.jobmetadata.JobMonException: com.sap.solman.agent.cfwk.PushException: Fetching csrf token failed! Cause: com.sap.solman.agent.conn.http.HttpException: javax.ws.rs.ProcessingException: java.net.UnknownHostException: <host>

Error 3
ERROR [jobmonhousekeeping Worker ] com.sap.solman.agent.cfwk.push.RestPushClient failed to retrieve csrf token for user=FRN_AJM_<CID> URL=http://<host>:<port>/sap/bc/rest/ajmdataservice/reorg: status code=403
WARN  [jobmonhousekeeping Worker ] com.sap.solman.agent.cfwk.push.RestPushClient no push since csrf token is empty

SAP Focused Run 

KBA , SV-FRN-APP-JOB , FRUN: Job Monitoring , Problem