Meaning of this error (ISE 1.2 on SNS-3415): HARDWARE RNG INTEGRITY CHECK HAS FAILED!

Question

Hi. We recently purchased an ISE 1.2 appliance (SNS-3415 hardware). It installed fine, but I am unable to access the GUI. When I login to the box and run the following command on the CLI
ISE-12-NS-SD-2/admin# show application status ise
I see the following output:
ISE Database listener is running, PID: 7737
ISE Database is running, number of processes: 38
ISE Application Server process is not running.
ISE Profiler DB is running, PID: 9090
ISE M&T Session Database is running, PID: 8959
ISE M&T Log Collector is running, PID: 9294
ISE M&T Log Processor is running, PID: 9376
% ERROR: ISE SERVICES HAVE BEEN DISABLED BECAUSE
%        HARDWARE RNG INTEGRITY CHECK HAS FAILED!
Can anyone help me? What can I do to ensure that the hardware RNG integrity check succeeds. Is it a license issue? Is it faulty hardware? Please advise. I would be very greatful.
Thanks in advance.

Answer 1

I worked with a TAC engineer on this and he said one other customer had this issue and the only recourse was reimaging the appliance with the ISE 1.2 ISO image.
I did reboot, restarted services, reset to factory default and none of that worked. It is possible that the issue happened because during setup of the appliance I didn't have network connectivity and went ahead with the setup and configuration of the ISE application anyway. I later had network connectivity but by that time ISE manifested this fault.
Reimaging and ensuring network connectivity during setup the next time around fixed the problem.