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SQL SERVER – LogonUserExEx Fails for User & GetToken – Logging on as the CNO Failed With Error 1326

(Pinal Dave) SQL Always-On feature is so tied to cluster that sometimes you would need to look at various logs to fix a failure. In this blog I would share my learning about fixing error LogonUserExEx fails for user & GetToken – Logging on as the CNO failed with error 1326.