Npgsql.NpgsqlException (0x80004005): Exception while performing SSL handshake  
---> System.Threading.Tasks.TaskCanceledException: A task was canceled.    
   at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)    
   at Npgsql.Internal.NpgsqlConnector.NegotiateEncryption(SslMode sslMode, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.Internal.NpgsqlConnector.NegotiateEncryption(SslMode sslMode, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.Internal.NpgsqlConnector.SetupEncryption(SslMode sslMode, GssEncryptionMode gssEncryptionMode, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.Internal.NpgsqlConnector.<Open>g__OpenCore|209_0(NpgsqlConnector conn, String username, SslMode sslMode, GssEncryptionMode gssEncMode, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.Internal.NpgsqlConnector.Open(NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.PoolingDataSource.OpenNewConnector(NpgsqlConnection conn, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.PoolingDataSource.<Get>g__RentAsync|33_0(NpgsqlConnection conn, NpgsqlTimeout timeout, Boolean async, CancellationToken cancellationToken)
   at Npgsql.NpgsqlConnection.<Open>g__OpenAsync|42_0(Boolean async, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenAsync(CancellationToken cancellationToken, Boolean errorsExpected)
   at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQueryAsync(RelationalCommandParameterObject parameterObject, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.RelationalDatabaseFacadeExtensions.ExecuteSqlRawAsync(DatabaseFacade databaseFacade, String sql, IEnumerable`1 parameters, CancellationToken cancellationToken)