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I'm getting this exception randomly in a CRM load balance LIVE environment when running Reports from CRM.

System.ServiceModel.Security.SecurityNegotiationException: A call to SSPI failed, see inner exception. System.Security.Authentication.AuthenticationException: A call to SSPI failed, see inner exception.System.ComponentModel.Win32Exception: The target principal name is incorrect

So my next step is update SPNs for SSRS and CRM domain accounts running its services. In an environment as:

  • 2 CRM servers: live-srv-crm01 ; live-srv-crm02
  • 2 SSRS servers: live-srv-ssrs01 ; live-srv-ssrs02

FQDN's servers follow this syntax: live-srv-crm01.companyname.azure

I have NOT any SPN setup for the domain accounts running Reporting Services service in any of the SRSS servers.

My SPN for the account running CRM App pool are: http/live-srv-crm01.companyname.com http/live-srv-crm01 http/internalcrm.companyname.com http/internalcrm

  1. Will troubleshoot this setting up SPN for each domain account running Reporting Services service?

http/live-srv-ssrs01 http/live-srv-ssrs01.companyname.azure and

http/live-srv-ssrs02 http/live-srv-ssrs02.companyname.azure

  1. Or would I need to update SPNs for domain account running CRM app pool?

http/live-srv-crm-01.companyname.azure http/live-srv-crm02 http/live-srv-crm02.companyname.azure

  1. To test if executing step 1 works, do I need to iisreset?
Jorge
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0 Answers0