PSA | Thoughts and Ramblings by Mike

PSA: Windows Server 2025 Guest Customization Black Screen
Oct 28, 2026 · 7 min read · AHV Prism Central vSphere Windows Sysprep Guest Customization PSA ·
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If you build Windows Server 2025 or Windows 11 templates and deploy them with guest customization, this one is worth five minutes of your time. It can turn a routine VM deployment into a black screen at login, and it hits Nutanix AHV and VMware vSphere alike. I ran into it after deploying a fresh Windows Server 2025 VM …

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PSA: Check Your Upgrade History Before AOS 7.5.1
May 2, 2026 · 6 min read · Nutanix AOS Upgrades Stargate PSA ·
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You read the release notes cover to cover before every upgrade, right? This one almost caught me. I was prepping a cluster for an upgrade to AOS 7.5.1 when a known issue in the release notes gave me pause. A quick look at the upgrade history confirmed the cluster was squarely in the affected population, and the upgrade …

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Issues with DCBX and LLDP on NX-OS 10.x
Mar 14, 2025 · 6 min read · Cisco Nexus Networking AHV Bug Home Lab Tech Tips PSA ·
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I recently deployed a new Nexus 93180YC-EX switch into my home lab, to replace the aging 9372PX. Sure, for a home lab this was fine, but I wanted to get up to some 25Gbe speeds! I've got various equipment connected to that old Nexus, with 2 Nutanix clusters and single VMware cluster, plus various other things, nothing …

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Zero Day Threat - Cisco Remote Access on ASA/FTD
Apr 25, 2024 · 2 min read · Cisco ASA FTD AnyConnect Talos Zero Day Security PSA ·
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Cisco recently patched two critical vulnerabilities in their firewall products, discovered after probable nation-state actors targeted them in a campaign dubbed "Arcane Door". These zero-day vulnerabilities, found in devices running ASA and FTD software, were exploited to implant malware and possibly steal data. Cisco …

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FMCv 7.2 Upgrade Gotchas on AHV
Jul 1, 2022 · 1 min read · Cisco Firepower FMC Nutanix AHV Tech Tips PSA ·
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Posting this more as a note to myself as a reminder and to also read the release notes a bit more carefully! After recently going thru an upgrade of the Firepower Management Center from 7.0.x to 7.2 FMCv, specifically on the Nutanix AHV platform I ran into a bug where the VM would not boot after the upgrade. While the …

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Cisco ASA Dropped Traffic Notice: Critical Bug Alert
Mar 31, 2017 · 2 min read · Cisco ASA Bug Security Firewall Field Notice PSA ·
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Cisco seems to be having a rough go of it lately with bugs that have a time bomb for certain hardware and software. Following up on the Signal Component issues – that plagued a large number of product lines (And in Cisco’s defense affected more than just Cisco – other vendors are affetected). I’m still waiting to find …

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