Hello,
I use DNN 4.9.3 and ActiveDirectory_01.00.06  (IIS6 , W2003).
It works ok , but Event Viewer has more exceptions
***********
AssemblyVersion: 04.09.03
PortalID: 0
PortalName: Stikonet
UserID: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: ef9faf70-e35b-4573-a8c2-d5abfe4c44cc
InnerException: Unhandled Error:
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest
StackTrace:
Message: System.Exception: Unhandled Error: ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest(Object s, EventArgs e) at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---
Source:
*************
What maybe?

Thanks ,

Kirill.

Thanks for answer.
>>I'm not sure at this point. Does it coincide with users logging into the site?
I'm not sure too, I try to reproduce it but without results yet .
Users login ok , but Event Viewer fixs more exceptions.

Some time ago I upgraded dnn 4.9.0 to dnn 4.9.3 ,
ActiveDirectory_01.00.05 to ActiveDirectory_01.00.06 (beta) => ActiveDirectory_01.00.06 (release) now.
Site uses Active Directory Login (DNN Login - disabled)
Active Directory Settings:
Enabled? : check
Hide Login Controls? : uncheck
Synchronize Role? : uncheck
Do Not Automatically Create Users? : uncheck
Provider : ADSIAuthenticationProvider
Authentication Type : Delegation
Root Domain: DC=STIKONET,DC=OD,DC=UA
User Name: STIKONET/AD_Provider
Email Domain: @stikonet.od.ua
Default Domain: STIKONET
Auto-login IP Address (Optional): 192.168.1.2
*********
web.config
...
    <httpModules>
      <!-- add name="Authentication" type="DotNetNuke.HttpModules.AuthenticationModule, DotNetNuke.HttpModules.Authentication" / -->
      <add name="Compression" type="DotNetNuke.HttpModules.Compression.CompressionModule, DotNetNuke.HttpModules" />
      <add name="RequestFilter" type="DotNetNuke.HttpModules.RequestFilter.RequestFilterModule, DotNetNuke.HttpModules" />
      <add name="UrlRewrite" type="DotNetNuke.HttpModules.UrlRewriteModule, DotNetNuke.HttpModules" />
      <add name="Exception" type="DotNetNuke.HttpModules.Exceptions.ExceptionModule, DotNetNuke.HttpModules" />
      <add name="UsersOnline" type="DotNetNuke.HttpModules.UsersOnline.UsersOnlineModule, DotNetNuke.HttpModules" />
      <add name="DNNMembership" type="DotNetNuke.HttpModules.Membership.MembershipModule, DotNetNuke.HttpModules" />
      <add name="Personalization" type="DotNetNuke.HttpModules.Personalization.PersonalizationModule, DotNetNuke.HttpModules" />
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="Authentication" type="DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule, DotNetNuke.Authentication.ActiveDirectory" />
    </httpModules>
...
<authentication mode="forms">
...

Thanks,
Kirill.

Hello.
We continue to get errors same as I put at my first post.
********
InnerException: Unhandled Error:
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest
StackTrace:
Message: System.Exception: Unhandled Error: ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule.OnAuthenticateRequest(Object s, EventArgs e) at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) --- End of inner exception stack trace ---
********
It's not from one IP address.
But it begins to appear at one IP , for example
12.09.2009 12:28:46   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:28:47   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:28:47   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:29:09   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:29:09   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:29:09   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:29:26   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
12.09.2009 12:29:27   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
...
12.09.2009 12:37:52   General Exception       AssemblyVersion: 04.09.05; PortalID: 0; PortalNa
So we get around 100 equal errors only from 12:28:46 to 12:37:52.
Can you give me any idea how to solve this problem ?
Thanks,
Kirill.