. net linked database: the certificate chain is issued by an untrusted authority


error message

The certificate chain is issued by an untrusted authority

Error environment

.NET web.config Error in linking database (publish to service)


The red part of the following configuration is added or modified in your code configuration

<add name=”ConnectionString” connectionString=”Server=.;Initial Catalog=QDJYCZNZZ;Persist Security Info=False;User ID=sa;Password=123456;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=True;Connection Timeout=300;” providerName=”System.Data.SqlClient” />

If an error is reported by connecting to the database through the management tool, the solution is as follows



Check the trust server certificate





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