Event ID 16 Description: While processing a TGS request for the target server http/foo.contoso.com, the account [email protected] did not have a suitable key for generating a Kerberos ticket (the missing key has an ID of 8). The requested etypes were 18 17 23 24 -135. The accounts available etypes were 23 18 17. Changing or resetting the password of will generate a proper key.