Forum Discussion
OWA/ECP stop working after update ((
Hello. I have one Exchange server under my control. After installing update KB5019758, the admin console stopped working. I get message ASSERT: HMACProvider.GetCertificates:protectionCertif...
It's quite interesting. I tried to find events using the error or warning filter. It turned out that the event I was interested in was with the information level. Event code 1309. The source is ASP.NET 4.0.30319.0
Event code: 3005
Event message: An unhandled exception occurred.
Event time: 07.03.2023 21:20:45
Event time (UTC): 07.03.2023 18:20:45
Event ID: c51f5e3a06fc4aa8b569417c2d2cbc90
Event sequence: 2
Event occurrence: 1
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/2/ROOT/owa-4603-133226868366278403
Trust level: Full
Application Virtual Path: /owa
Application Path: C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\owa\
Machine name: EMAIL
Process information:
Process ID: 20032
Process name: w3wp.exe
Account name: NT AUTHORITY\system
Exception information:
Exception type: ArgumentException
Exception message: An element with the same key has already been added.
in System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
in System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoaderBase.InitializeLocalVersionFolders()
in Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoaderBase.Load()
at Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoader.Load()
in Microsoft.Exchange.Clients.Owa.Core.OwaApplicationBase.ExecuteApplicationStart(Object sender, EventArgs e)
in Microsoft.Exchange.Clients.Owa.Core.OwaModule.Init(HttpApplication context)
in System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr AppContext, HttpContext context, MethodInfo[] handlers)
in System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr AppContext, HttpContext context)
in System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr AppContext, HttpContext context)
in System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)
Request information:
Request URL: https://email.contoso.com:444/owa
Request path: /owa
User host address: my-ip-address
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\system
Thread information:
Thread ID: 63
Thread account name: NT AUTHORITY\system
Is impersonating: False
Stack trace: in System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
in System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoaderBase.InitializeLocalVersionFolders()
in Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoaderBase.Load()
in Microsoft.Exchange.Clients.Owa.Core.OwaSettingsLoader.Load()
in Microsoft.Exchange.Clients.Owa.Core.OwaApplicationBase.ExecuteApplicationStart(Object sender, EventArgs e)
at Microsoft.Exchange.Clients.Owa.Core.OwaModule.Init(HttpApplication context)
in System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr AppContext, HttpContext context, MethodInfo[] handlers)
in System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr AppContext, HttpContext context)
in System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr AppContext, HttpContext context)
in System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)
Custom event details:
Hi KosmosKami,
From the EV log, it still seems that something is wrong with the SharedWebConfig.config file.
Maybe that copy paste wasn't the best way. Let me suggest the following steps:
- Navigate to C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess and if your pasted SharedWebConfig.config file is still there, move it to another location as backup.
- Run cd %ExchangeInstallPath%\bin to change the current directory to the bin folder that's under the Exchange installation path.
- Use the DependentAssemblyGenerator.exe tool to generate the file:
DependentAssemblyGenerator.exe -exchangePath "%ExchangeInstallPath%\bin" -exchangePath "%ExchangeInstallPath%\ClientAccess" -configFile "%ExchangeInstallPath%\ClientAccess\SharedWebConfig.config"
- Restart the Server.
Hope this helps.