Just upgraded from 2013 SP1 to CU12 in a hybrid environment, now I cannot get to the https://SERVER/ecp/?ExchClientVer=15 website. I checked the Application log and got this error that I cannot figure out:
Current user: 'COMPANY\USER.NAME'
Request for URL 'https://SERVER.COMPANY.com:444/ecp/default.aspx?ExchClientVer=15(https://SERVER/ecp/?ExchClientVer=15)' failed with the following error:
System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.get_TenantNameForMonitoringPurpose()
at Microsoft.Exchange.Management.ControlPanel.RbacContext.CreateSession()
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.CreateSession()
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.get_Session()
at Microsoft.Exchange.Management.ControlPanel.AuthenticationSettings..ctor(HttpContext context)
at Microsoft.Exchange.Management.ControlPanel.RbacModule.Application_PostAuthenticateRequest(Object sender, EventArgs e)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.get_TenantNameForMonitoringPurpose()
at Microsoft.Exchange.Management.ControlPanel.RbacContext.CreateSession()
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.CreateSession()
at Microsoft.Exchange.Management.ControlPanel.RbacSettings.get_Session()
at Microsoft.Exchange.Management.ControlPanel.AuthenticationSettings..ctor(HttpContext context)
at Microsoft.Exchange.Management.ControlPanel.RbacModule.Application_PostAuthenticateRequest(Object sender, EventArgs e)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Flight info: Features:[[Global.DistributedKeyManagement, False],[Global.GlobalCriminalCompliance, False],[Global.MultiTenancy, False],[Global.WindowsLiveID, False],[Eac.AllowMailboxArchiveOnlyMigration, True],[Eac.AllowRemoteOnboardingMovesOnly, False],[Eac.BulkPermissionAddRemove,
True],[Eac.CmdletLogging, True],[Eac.CrossPremiseMigration, False],[Eac.DevicePolicyMgmtUI, False],[Eac.DiscoveryDocIdHint, False],[Eac.DiscoveryPFSearch, False],[Eac.DiscoverySearchStats, False],[Eac.DlpFingerprint, False],[Eac.EACClientAccessRulesEnabled,
False],[Eac.GeminiShell, False],[Eac.ManageMailboxAuditing, False],[Eac.ModernGroups, False],[Eac.Office365DIcon, False],[Eac.OrgIdADSeverSettings, False],[Eac.RemoteDomain, False],[Eac.UCCAuditReports, False],[Eac.UCCPermissions, False],[Eac.UnifiedAuditPolicy,
False],[Eac.UnifiedComplianceCenter, False],[Eac.UnifiedPolicy, False],[Eac.UnlistedServices, False],], Flights:[], Constraints:[[MACHINE, SERVER],[MODE, ENTERPRISE],[PROCESS, W3WP],], IsGlobalSnapshot: True
Please help! I am beating my head against a wall at this point!