ONTAP 9.3 FIPS "Couldn't agree a hostkey algorithm (available: )"

StorageNob — Wed, 04 Jun 2025 13:06:39 GMT

Hello,

In search of an answer as I've followed all instructions in this KB and I still cannot establish a putty session to the nodes I've placed into FIPS mode.

https://kb.netapp.com/app/answers/answer_view/a_id/1071223/~/while-fips-is-enabled-on-data-ontap-9.0%2B%2C-users-are-unable-to-ssh-into-the

I'm running ONTAP 9.3

AFF A700 Controllers

Putty .70

I've tried clearing the host entries for putty in the registry and I still get the "Couldn't agree a hostkey algorithm (available: )" message when attempting to connect.

Taking the nodes out of FIPs mode shouldn't be the answer...can anyone help here?

Thank You.

Re: ONTAP 9.3 FIPS "Couldn't agree a hostkey algorithm (available: )"

COMITSUPPORT — Fri, 04 Jan 2019 12:53:51 GMT

Check answer ID 1071223 in knowledge base.

topic Re: ONTAP 9.3 FIPS "Couldn't agree a hostkey algorithm (available: )" in ONTAP Discussions

ONTAP 9.3 FIPS "Couldn't agree a hostkey algorithm (available: )"

Re: ONTAP 9.3 FIPS "Couldn't agree a hostkey algorithm (available: )"