Courts NSX-T Manager syslog and Carbon Black Cloud check-ins through an on-premises proxy both stall after a core hardware firewall change. Overlay east-west Distributed Firewall still hits. Packet captures stop at the core firewall, which now rate-limits and ACLs those destinations. What should the administrator identify?

When courts NSX-T Manager syslog and Carbon Black Cloud check-ins through an on-premises proxy both stall after a core hardware firewall change, overlay east-west Distributed Firewall still hits, and packet captures stop at the core firewall which now rate-limits and ACLs those destinations, identify the hardware firewall ACL or rate-limit in the physical path that starves Manager syslog and the CBC proxy. East-west continuing while management and proxy paths die points to the core firewall change, not overlay DFW. Fixing that civic physical ACL restores logging and sensor check-in. A Guest Introspection partner outage, because GI always carries syslog and CBC, fails by concept because GI does not carry Manager syslog and CBC proxy check-ins. An NSX-T identity firewall default deny on overlay VMs, which would also drop east-west, fails by concept because east-west still hits, so overlay IDFW default deny is not the shared failure mode. A Workspace ONE Access network-range miss, which is the only engine that can block syslog UDP, fails by concept because Access network ranges do not block Manager syslog UDP at the core firewall. Exam caveat: dual stall of Manager syslog and CBC via proxy with east-west intact after core firewall change means hardware ACL/rate-limit—correlate captures to that device. Operational check: adjust core firewall ACL/rate-limit for syslog and CBC proxy destinations, confirm Manager syslog and CBC check-ins resume, keep east-west DFW as-is, and version-control those allows in the court perimeter change process for municipal security telemetry.