Hi guys. I've no _ssl_ used by _dashboard_ -> $ ceph mgr services { "dashboard": "http://10.1.1.63:8080/", "prometheus": "http://10.1.1.63:9283/" } -> $ ceph config get mgr mgr/dashboard/ssl false and the 'standby' servers logs: ... Dec 08 11:33:39 ceph-9f4f9dba-72c7-11f0-8052-525400519d29-alertmanager-podster1[2503]: ts=2025-12-08T11:33:39.781Z caller=dispatch.go:353 level=error component=dispatcher msg="Notify for alerts failed" num_alerts=1 err="ceph-dashboard/webhook[0]: notify retry canceled after 7 attempts: Post \"<redacted>\": dial tcp 10.1.1.63:8443: connect: connection refused; ceph-dashboard/webhook[1]: notify retry canceled after 7 attempts: Post \"<redacted>\": dial tcp 10.1.1.61:8443: connect: connection refused" Dec 08 11:33:39 ceph-9f4f9dba-72c7-11f0-8052-525400519d29-alertmanager-podster1[2503]: ts=2025-12-08T11:33:39.781Z caller=notify.go:848 level=warn component=dispatcher receiver=ceph-dashboard integration=webhook[0] aggrGroup="{}/{}:{alertname=\"CephHealthWarning\"}" msg="Notify attempt failed, will retry later" attempts=1 err="Post \"<redacted>\": dial tcp 10.1.1.63:8443: connect: connection refused" ... with the snippet of the logs above _ceph_ says only: -> $ ceph health detail HEALTH_WARN mon podster1 is low on available space [WRN] MON_DISK_LOW: mon podster1 is low on available space mon.podster1 has 12% avail nothing listens on 8443 anywhere, which is as it should be - why standby server wants that - would anybody know? 10.1.1.61 is standby's own IP. many thanks, L.