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Hi All,
Logon to ECP files with the following error
Current user: 'Contoso\user1'
Request for URL 'https://exc01.hosp.local:444/ecp/default.aspx(https://exc01.hosp.local/ecp/)' failed with the following error:
System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at AjaxControlToolkit.ToolkitScriptManager.ExpandAndSort(IList`1 scriptReferences)
at AjaxControlToolkit.ScriptObjectBuilder.ScriptReferencesFromResourceEntries(IList`1 entries)
at AjaxControlToolkit.ScriptControlBase.GetScriptReferences()
at System.Web.UI.ScriptControl.System.Web.UI.IScriptControl.GetScriptReferences()
at System.Web.UI.ScriptControlManager.AddScriptReferenceForScriptControl(List`1 scriptReferences, IScriptControl scriptControl)
at System.Web.UI.ScriptControlManager.AddScriptReferencesForScriptControls(List`1 scriptReferences)
at System.Web.UI.ScriptManager.RegisterScripts()
at System.Web.UI.ScriptManager.OnPagePreRenderComplete(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Page.OnPreRenderComplete(EventArgs e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
System.NullReferenceException: Object reference not set to an instance of an object.
at AjaxControlToolkit.ToolkitScriptManager.ExpandAndSort(IList`1 scriptReferences)
at AjaxControlToolkit.ScriptObjectBuilder.ScriptReferencesFromResourceEntries(IList`1 entries)
at AjaxControlToolkit.ScriptControlBase.GetScriptReferences()
at System.Web.UI.ScriptControl.System.Web.UI.IScriptControl.GetScriptReferences()
at System.Web.UI.ScriptControlManager.AddScriptReferenceForScriptControl(List`1 scriptReferences, IScriptControl scriptControl)
at System.Web.UI.ScriptControlManager.AddScriptReferencesForScriptControls(List`1 scriptReferences)
at System.Web.UI.ScriptManager.RegisterScripts()
at System.Web.UI.ScriptManager.OnPagePreRenderComplete(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Page.OnPreRenderComplete(EventArgs e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at AjaxControlToolkit.ToolkitScriptManager.ExpandAndSort(IList`1 scriptReferences)
at AjaxControlToolkit.ScriptObjectBuilder.ScriptReferencesFromResourceEntries(IList`1 entries)
at AjaxControlToolkit.ScriptControlBase.GetScriptReferences()
at System.Web.UI.ScriptControl.System.Web.UI.IScriptControl.GetScriptReferences()
at System.Web.UI.ScriptControlManager.AddScriptReferenceForScriptControl(List`1 scriptReferences, IScriptControl scriptControl)
at System.Web.UI.ScriptControlManager.AddScriptReferencesForScriptControls(List`1 scriptReferences)
at System.Web.UI.ScriptManager.RegisterScripts()
at System.Web.UI.ScriptManager.OnPagePreRenderComplete(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at System.Web.UI.Page.OnPreRenderComplete(EventArgs e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
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, EXC01-G-SWARH],[MODE, ENTERPRISE],[PROCESS, W3WP],], IsGlobalSnapshot: True
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 80%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAL%3C/text%3E%3C/svg%3E)
Hi，
For better troubleshooting, I would like to confirm the following with you:
1． What is the current version of Exchange Server? How many Exchange Servers are in the environment?
2． Can you log in to ECP with an administrator account?
3． Can you log in to OWA with this account?
In addition, please check the Application log in Event Viewer to see if there is more detailed error information?
Would you please get back to me at your earliest convenience? Because your response is of great importance for the following trouble shooting. If you need further help, please provide more detailed information, so that we can give more appropriate suggestions.
I look forward to hearing from you.
As part of the troubleshooting process i've carried out the following
Checked the ECP ruls and auth methods & compared it with Other working servers – No issues found
run updatecas.ps1 and UpdateConfigFiles.ps1 – Didn’t resovle the issue
Checked the certificates - Looks good no issues found
restarted the server - Didn’t resovle the issue
replaced the webconf file from working server - Didn’t resovle the issue
replaced remotedomain file in DDI folder - Didn’t resovle the issue
replaced the DDI folder - Didn’t resovle the issue
Recreated the virtual directory in the IIS - didn't resovle the issue.
The openspec-* tags are dedicated to supporting issues related to open specifications. You can find open specifications here https://docs.microsoft.com/en-us/openspecs/. Since your question does not pertain to one of these specifications, I've removed the openspecs tag and added the Exchange Server Management tag. Hopefully this will get your post the proper attention.
Jeff McCashland
Microsoft Open Specifications
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Have you tried:
https://www.stellarinfo.com/blog/exchange-server-http-500-error-ecp/
Or are the bindings on the exchange backend correct?
https://docs.microsoft.com/en-us/answers/questions/203118/error-500-exchange-2016.html
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