topic ISE 3.5 install fails consistently in Network Access Control

ISE 3.5 install fails consistently

Scott.ODonnell@gmail.com — Sun, 16 Nov 2025 15:00:01 GMT

I'm running into a problem getting ISE 3.5 to install on ESXi 8.0u2.
I've tried the OVA and ISO.
The base image install works and then I login as "setup".
Everything seems to go ok until a swap file operation starts.
The VM never gets past this point.
I have plenty of space on the host system.
I have tried thin and thick provisioned disk.

I'm at a loss where to go next.

Re: ISE 3.5 install fails consistently

Marcelo Morais — Sun, 16 Nov 2025 21:20:52 GMT

Scott.ODonnell@gmail.com ,

I have installed (via ISO) and I am testing ISE 3.5 ... what are your hardware specs (CPU, RAM, and HD) ?

Re: ISE 3.5 install fails consistently

Arne Bier — Tue, 18 Nov 2025 23:47:14 GMT

Is the Datastore used for the VMs of type VMFS ? Did it give an option between Type 5 and Type 6?

Long shot: In the VM, under the tab "VM Options", then "Boot Options" did you try "Firmware EF" (and untick Secure Boot) instead of BIOS?