Symptoms

When you try to connect to a Microsoft Exchange Server 2016 server installed on a Windows Server 2016 computer by using Mozilla Firefox or Google Chrome, you receive an error message. The error messages are as follows.


Chrome: ERR_SPDY_INADEQUATE_TRANSPORT_SECURITY

Firefox: NS_ERROR_NET_INADEQUATE_SECURITY


Resolution

Microsoft acknowledges this is an issue with Exchange 2016. It will be addressed in Cumulative Update 6 for Exchange Server 2016.

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