What you’re seeing
- Live migration fails with error 32784 citing processor-specific features not supported on the destination.
- The error appears when moving from a newer server to an older one, or between Intel generations.
- Shutting the VM down allows it to move, but not while running.
- Mixed-generation hosts were added to the cluster during a hardware refresh.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The hosts have processors with different instruction sets, and the VM was started using features the other host lacks.
- Processor compatibility mode is not enabled on the VM.
- Hosts use processors from different vendors, which live migration cannot bridge.
- BIOS settings such as virtualization extensions differ between the hosts.
Why it matters
When VMs cannot move between hosts, patching and hardware maintenance require shutting down services, often after hours, at extra cost. During a hardware refresh, it can block the transition from old to new servers without downtime. It also reduces resilience, because VMs cannot be evacuated quickly from a failing host.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Do we need matching servers?
Not always. Within the same CPU vendor, compatibility settings often allow migration, with some trade-off in available processor features.
Will changing compatibility affect performance?
It can limit some newer processor features for that VM. For most business workloads, the impact is small, but it is worth assessing for demanding applications.