VCF 9.1 Known Issues: September 2026 KB Roundup
VCF 9.1 known issues from 973 Broadcom KBs in September 2026: upgrade traps, urgent PSODs, blocked paths, licensing, SSO and 12 how-to fixes with CLI.
Latest
ESXi Oct 21, 2026
PSOD “#GP Exception 13 in world ###:vmotionRecvH” During vMotion on ESX 9.1 (KB 455306)
PSOD #GP Exception 13 in world vmotionRecvH during vMotion on ESX 9.1 (KB 455306): the PSOD screen text, why more than 16 stream helpers crash the host, and the workaround.
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SAP HANA VM Sizing and NUMA on VCF 9: A Worked Example
How to size SAP HANA VMs on VCF 9 around NUMA: whole or half sockets, vCPUs equal to threads, memory per socket after ESX overhead, the VM settings that matter, and how to check placement with esxtop and sched-stats.
VCF Certificate Management Tool (vcf-cert-tool): One CLI for Expired Certificates in vCenter, NSX, Supervisor and VCF Operations
Broadcom's vcf-cert-tool (KB 445742) fixes expired internal certificates on vCenter, ESX, NSX, Supervisor, VCF Operations and Cloud Proxy from one menu-driven CLI. Supported versions, download and how to run it.
ESXi iSCSI Port Binding with esxcli: networkportal add, remove and –force
iSCSI port binding with esxcli: list, add and remove network portals, what --force does, and how to clear active iSCSI sessions safely.
vSphere Key Providers and vTPM: Native Key Provider vs External KMS
Native Key Provider vs external KMS vs Trust Authority, how to set up and back up an NKP, how to add a vTPM, and what breaks if you skip the backup.
How to Check VCF 9 Hardware Compatibility: Servers, CPUs, NICs and vSAN ESA Devices
The four checks that decide VCF 9 hardware support: BCG listings, CPU KB 318697, ESX 9 deprecated devices and vSAN ESA certification with a fresh HCL DB.
Supervisor Stuck in Configuring: “ERROR – Configured Core Supervisor Services” with ReconcileFailed
Supervisor stays in Configuring with "ERROR - Configured Core Supervisor Services" and velero or tkg packages in ReconcileFailed because docker-registry.kube-system.svc returns Service Unavailable. The proxy is the cause (KB 411761).
Supervisor Certificates Expired? Check and Rotate vSphere Supervisor Certificates with certmgr
Supervisor control plane and spherelet certificates expire after one year. How to check them, rotate them from vCenter with Broadcom's certmgr tool, persist the new keys, and which certificates certmgr does not cover (KB 322994).
Tesla P40 Passthrough GPU Disappears from the VM: “PCIe link to the device is down” on ESXi
My NVIDIA Tesla P40 in ESXi passthrough suddenly vanished from the VM: nvidia-smi could not talk to the driver and a VM reboot did not help. What the logs show, why only a host reboot fixes it, and how to make a homelab P40 stable (KB 418517).