Alex - For standard Active Directory integration, you need to swap the values you have for "User Object Class" and "UserID Attribute", then change what you have for "Group Member Attribute".  Here are the values you should have for each of these when integrating with AD:

User Object Class: user

UserID Attribute: samaccountname

Group ObjectClass: group

Thanks so much for your reply! Implemented corrected configuration, but alas, still not working. Diagnostic detail is displaying the following:

Status Code: 400

Status Text: Bad Request

Detailed error message:

Stack Trace:

com.emc.cmp.ms.config.resources.ConfigUpdateException: The request could not be understood by the server due to malformed syntax

    at com.emc.asmg.ne.config.provider.NEConfigProvider.storeNewConfigSet(NEConfigProvider.java:483)

    at com.emc.cmp.ms.config.DefaultConfigManager.handleAddSettingsImpl(DefaultConfigManager.java:1090)

    at com.emc.cmp.ms.config.DefaultConfigManager.handleAddSettings(DefaultConfigManager.java:720)

    at com.emc.cmp.ms.config.resources.SettingsResource.acceptRepresentation(SettingsResource.java:135)

    at org.restlet.resource.Resource.post(Resource.java:689)

    at org.restlet.resource.Resource.handlePost(Resource.java:538)

    at org.restlet.Finder.handle(Finder.java:357)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Router.handle(Router.java:504)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Router.handle(Router.java:504)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Router.handle(Router.java:504)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at com.noelios.restlet.StatusFilter.doHandle(StatusFilter.java:130)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:124)

    at com.noelios.restlet.application.ApplicationHelper.handle(ApplicationHelper.java:112)

    at org.restlet.Application.handle(Application.java:341)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Router.handle(Router.java:504)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at org.restlet.Router.handle(Router.java:504)

    at org.restlet.Filter.doHandle(Filter.java:150)

    at org.restlet.Filter.handle(Filter.java:195)

    at com.noelios.restlet.ChainHelper.handle(ChainHelper.java:124)

    at org.restlet.Component.handle(Component.java:673)

    at org.restlet.Server.handle(Server.java:331)

    at com.noelios.restlet.ServerHelper.handle(ServerHelper.java:68)

    at com.noelios.restlet.http.HttpServerHelper.handle(HttpServerHelper.java:147)

    at com.noelios.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:884)

    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368)

    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)

    at com.emc.asmg.authz.UrlFullPathFilterSecurityInterceptor.doFilter(UrlFullPathFilterSecurityInterceptor.java:34)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)

    at org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:89)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)

    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)

    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)

    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:83)

    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380)

    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169)

    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)

    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

    at com.emc.ionix.asmg.filters.DiagnosticFilter.doFilter(DiagnosticFilter.java:77)

    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)

    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)

    at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)

    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)

    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776)

    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)

    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)

    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)

    at java.lang.Thread.run(Thread.java:662)