The Network Access Protection Agent was unable to determine which HRAs to request a health certificate from. The following fatal alert was received: 47 The administrator of this machine should review the certificate authorities trusted for client authentication and remove those that do not really need to be trusted. Currently, this server trusts so many certificate authorities that the list has grown too long.

The client uses this list to choose a client certificate that is trusted by the server.

When asking for client authentication, this server sends a list of trusted certificate authorities to the client.

Voice mail that uses Exchange Server together with Unified MessagingĮvents that are logged in Windows or in application-specific event logs, and that either scope or definitively identify the symptom that is discussed in this article, include, but are not limited to, events that are listed in the following table.

Client connectivity to Lync or to Office Communications Server.

Wired network access that uses certificate-based authentication.

Wireless network access that uses certificate-based authentication.

Some of the applications and operations that may fail include, but are not limited to, the following: This article provides a solution to SSL/TLS communication problems that occur after you install KB 931125.Īpplies to: Windows Server 2008 R2 Service Pack 1, Windows Server 2012 R2Īfter December 11, 2012, applications and operations that are dependent on TLS-based authentications fail may suddenly fail although they have no apparent configuration change.

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