vb.net - ValidateServerCertificate - ServerCertificateValidationCallback

Question

証明書の検証に以下のコードを使用しています。

System.Net.ServicePointManager.ServerCertificateValidationCallback = New System.Net.Security.RemoteCertificateValidationCallback(AddressOf ValidateServerCertificate)

Public Shared Function ValidateServerCertificate(ByVal sender As Object, ByVal certificate As X509Certificate, ByVal chain As X509Chain, ByVal sslPolicyErrors As Net.Security.SslPolicyErrors) As Boolean
    If sslPolicyErrors = Net.Security.SslPolicyErrors.None Then
        Return True
    End If
    Return False
End Function

RemoteCertificateChainErrors が発生しています。それを解決する方法。