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Access to Exchange administrative center returns an error after the login credentials are entered

Christopher Eddy 0 Reputation points
2023-10-26T18:47:26.4133333+00:00

Inexplicably the server does not allow OWA and access to the Exchange management center. OWA reports that the site cannot be reached and Exchange Management Center reports "Server Error in '/owa' Application.

Event code: 3005 
Event message: An unhandled exception has occurred. 
Event time: 10/26/2023 2:19:10 PM 
Event time (UTC): 10/26/2023 6:19:10 PM 
Event ID: 8914976f609e409d959edee10eda3924 
Event sequence: 18116 
Event occurrence: 6048 
Event detail code: 0 
 
Application information: 
    Application domain: /LM/W3SVC/1/ROOT/owa-2-133426363981133032 
    Trust level: Full 
    Application Virtual Path: /owa 
    Application Path: C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\owa\ 
    Machine name: ES 
 
Process information: 
    Process ID: 28744 
    Process name: w3wp.exe 
    Account name: NT AUTHORITY\SYSTEM 
 
Exception information: 
    Exception type: ExAssertException 
    Exception message: ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length<1
   at Microsoft.Exchange.Diagnostics.ExAssert.AssertInternal(String formatString, Object[] parameters)
   at Microsoft.Exchange.Clients.Common.HmacProvider.GetCertificates()
   at Microsoft.Exchange.Clients.Common.HmacProvider.GetHmacProvider()
   at Microsoft.Exchange.Clients.Common.HmacProvider.ComputeHmac(Byte[][] messageArrays)
   at Microsoft.Exchange.HttpProxy.FbaModule.SetCadataCookies(HttpApplication httpApplication)
   at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.HandleFbaFormPost(BackEndServer backEndServer)
   at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.ShouldContinueProxy()
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.BeginProxyRequestOrRecalculate()
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.InternalOnCalculateTargetBackEndCompleted(TargetCalculationCallbackBeacon beacon)
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.<>c__DisplayClass3f.<OnCalculateTargetBackEndCompleted>b__3e()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)
   at Microsoft.Exchange.HttpProxy.Diagnostics.SendWatsonReportOnUnhandledException(MethodDelegate methodDelegate, LastChanceExceptionHandler exceptionHandler)
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.CallThreadEntranceMethod(MethodDelegate method)

 
 
Request information: 
    Request URL: https://localhost:443/owa/auth.owa 
    Request path: /owa/auth.owa 
    User host address: ::1 
    User: NEBHD1\HealthMailboxd899cdf 
    Is authenticated: True 
    Authentication Type: Basic 
    Thread account name: NT AUTHORITY\SYSTEM 
 
Thread information: 
    Thread ID: 137 
    Thread account name: NT AUTHORITY\SYSTEM 
    Is impersonating: False 
    Stack trace:    at Microsoft.Exchange.Diagnostics.ExAssert.AssertInternal(String formatString, Object[] parameters)
   at Microsoft.Exchange.Clients.Common.HmacProvider.GetCertificates()
   at Microsoft.Exchange.Clients.Common.HmacProvider.GetHmacProvider()
   at Microsoft.Exchange.Clients.Common.HmacProvider.ComputeHmac(Byte[][] messageArrays)
   at Microsoft.Exchange.HttpProxy.FbaModule.SetCadataCookies(HttpApplication httpApplication)
   at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.HandleFbaFormPost(BackEndServer backEndServer)
   at Microsoft.Exchange.HttpProxy.FbaFormPostProxyRequestHandler.ShouldContinueProxy()
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.BeginProxyRequestOrRecalculate()
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.InternalOnCalculateTargetBackEndCompleted(TargetCalculationCallbackBeacon beacon)
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.<>c__DisplayClass3f.<OnCalculateTargetBackEndCompleted>b__3e()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)
   at Microsoft.Exchange.HttpProxy.Diagnostics.SendWatsonReportOnUnhandledException(MethodDelegate methodDelegate, LastChanceExceptionHandler exceptionHandler)
   at Microsoft.Exchange.HttpProxy.ProxyRequestHandler.CallThreadEntranceMethod(MethodDelegate method)
 
 
Custom event details:
Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Shaofan Lv-MSFT 6,915 Reputation points Microsoft Vendor
    2023-10-27T07:44:47.2066667+00:00

    Hello @Christopher Eddy

    Use the following command to check the status of your existing OAuth certificate and create a new one if expired.

    (Get-AuthConfig).CurrentCertificateThumbprint | Get-ExchangeCertificate | Format-List

    More details: Exchange Server error in '/owa' application

    Or you can refer to KarlT700's answer and try to register the old certificate (If the certificate has not expired.).

    User's image

    Also, you can check if a CU update is available.

    Regards

    Shaofan

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