Intermittent SSO kerberos authentication error

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paul.brann
Posts: 1
Joined: Tue Jan 12, 2021 11:03 am
OLAP Product: Planning analytics
Version: TM1 = 11.8 workspace = 2.0.49,
Excel Version: 11_0_54_7_0

Intermittent SSO kerberos authentication error

Post by paul.brann » Tue Jan 12, 2021 11:33 am

Hi

We have an intermittent SSO issue that I need help on. We are using Planning analytics (TM1 version 11.8 on a MS Azure 2019 server.- Workspace 2.0.49 on a MS Azure 2016 server and excel version 2.0.51.

Authentication works fine for 2-3 weeks and then users experience the following authentication error:

TM1.HttpResponse 401 unauthorised
TM1.HttpResponse GET /api/v1/ActiveUser
TM1.HttpResponse 401 unauthorised
TM1.HttpResponse GET /api/v1/ActiveUser
TM1.SSPISecurity Server is configured to only accept Kerberos package but the client is using NTLM when attempting to authenticate.
TM1.HttpResponse 403 Forbidden

We have completed the steps from this link https://www.ibm.com/support/pages/node/6219292 , but no luck as the issue remains. To reiterate, our issue is intermittent hence those steps might not be relevant anyway.

Please could you suggest how to resolve. Note that our client is new on MS Azure so any suggestions of required config changes on the server side would also be welcomed.

Many thanks,

Paul
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