topic Downgrade Cisco ISE from ver 3.3 to 3.1p10 in Network Access Control

Downgrade Cisco ISE from ver 3.3 to 3.1p10

Aleksandr Pashko — Mon, 20 Oct 2025 13:21:33 GMT

Hello everyone

I'm going to upgrade cisco ISE from ver 3.1.0.518 patch 10 to version 3.3, so I want you to ask could I downgrade back to 3.1p10 from 3.3 if smth goes wrong?

Re: Downgrade Cisco ISE from ver 3.3 to 3.1p10

ahollifield — Mon, 20 Oct 2025 13:54:40 GMT

WHY?

There is no downgrade method. You would re-build/re-image nodes and then import your 3.1 backup file.

https://www.cisco.com/c/en/us/products/collateral/security/identity-services-engine/identity-service-engine-software-3-1-3-2.html

Re: Downgrade Cisco ISE from ver 3.3 to 3.1p10

Aleksandr Pashko — Mon, 20 Oct 2025 14:02:59 GMT

Does re-build/re-image procedure affect on the current licenses, or I have to contact Cisco TAC?

Re: Downgrade Cisco ISE from ver 3.3 to 3.1p10

ahollifield — Mon, 20 Oct 2025 14:50:43 GMT

You would just register again. To the smart account with a new token

Re: Downgrade Cisco ISE from ver 3.3 to 3.1p10

Aleksandr Pashko — Tue, 21 Oct 2025 13:19:40 GMT

And if I have Permanent License Reservation, anyway I need to register smart account with a new token received from Cisco and make PLR again?

Re: Downgrade Cisco ISE from ver 3.3 to 3.1p10

ahollifield — Tue, 21 Oct 2025 13:30:07 GMT

Yes