Hi all, Please help me with the following issue. I try to configure Spring Security Adapter (version 2.3.0.Final): https://keycloak.gitbooks.io/securing-client-applications-guide/content/t... I suppose that Keycloak uses the static client registration since when I tries to connect without the client configuration in Keycloak I get the following: 16:15:43,174 WARN [org.keycloak.events] (default task-3) type=LOGIN_ERROR, realmId=master, clientId=st_1, userId=null, ipAddress=192.168.111.33, error=client_not_found Please note that I was able to connect to Keycloak using non Keycloak OIDC client using the following configuration: a) clientId b) clientSecret c) Scopes d) redirectUris Therefore I have configured the client at Keycloak using the same information. I am not sure what is "Valid Redirect URIs" and I have configured the following value: http://192.168.110.2:8081/app/sso/login Now client redirects to Keycloak IDP using this URL http://192.168.110.2:8080/auth/realms/master/protocol/openid-connect/auth... I authenticate the user and IDP returns URL back to the client using this URL: http://192.168.110.2:8081/app/sso/login?state=14%2F9a4376fa-06e2-4188-a61... Unfortunately then I have the endless loop. While I debug KeycloakAuthenticationProcessingFilter I see that AuthOutcome get value NOT_ATTEMPTED and it cause additional redirect to IDP. What I missed? I have opened the bug https://issues.jboss.org/browse/KEYCLOAK-3868 with attached json file and Spring Security configuration Best regards, Michael