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El grupo de aplicaciones de EWS se bloquea porque el certificado de OAuth de Exchange Server ha expirado

  • Se aplica a: Exchange Server 2019, Exchange Server 2016, Exchange Server 2013

Síntomas

El grupo de aplicaciones de Exchange Web Services (EWS) se bloquea cada 10 a 15 minutos en todos los servidores y las aplicaciones EWS producen un error HTTP 503. Estos eventos se registran en el Visor de eventos:

Log Name:      Application
Source:        MSExchange Common
Date:          <Data time>
Event ID:      4999
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Exchange2016.contoso.com
Description:
Watson report about to be sent for process id: 63200, with parameters: E12IIS, c-RTL-AMD64, 15.01.1979.003, w3wp#MSExchangeServicesAppPool, M.Exchange.Security, M.E.S.O.V1ProfileLocalTokenIssuer..ctor, M.E.S.OAuth.OAuthTokenRequestFailedException, 6446-dumptidset, 15.01.1979.003.
ErrorReportingEnabled: False 

Log Name:      System
Source:        Microsoft-Windows-WAS
Date:          <Data time>
Event ID:      5011
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:     Exchange2016.contoso.com
Description:
A process serving application pool 'MSExchangeServicesAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '29492'. The data field contains the error number.

Causa

El certificado Exchange Server Open Authentication (OAuth) ha expirado.

Solución

Consulte este artículo para renovar el certificado de OAuth.