Blockchain is a technology that underpins the success of Bitcoin and other digital currencies, but it has uses far beyond finance. Learn how blockchain works and why it is proving disruptive to other areas of IT.
Test-FederationTrust : Failed to retrieve Federation Metadata from the Microsoft Federation Gateway. This operation will be retried in a few seconds. Last error: System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSl/TLS secure channel. System.Security.Authentica
tion.Authe nticationE xception: The remote certificate is invalid according to the validation procedure
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