Hello there,
If you have a single IIS server, the service is typically running under Local System . The standard SPNs are registered to the computer account ( like host/server01 & host/server01.contoso.com )* so when a request for http/server01 comes in, the ticket will be encrypted using the computer account’s password. This configuration works well for a single server environment.
You can find some solution from this article
Hope this resolves your Query !!
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