Error Souce =.Net SqlClient Data Provider
Error Message = 서버에 연결했지만 사전 로그인 핸드셰이크 중에 오류가 발생했습니다. (provider: TCP Provider, error: 0 - 지정된 네트워크 이름을 더 이상 사용할 수 없습니다.)
Stack = 위치: System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling, SqlAuthenticationProviderManager sqlAuthProviderManager) 위치: System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) 위치: System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions) 위치: System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) 위치: System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) 위치: System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) 위치: System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) 위치: System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) 위치: System.Data.SqlClient.SqlConnection.Open() 위치: DB.DbConn() 파일 d:\WEB\Corp\App_Code\DB.cs:줄 46

Query = DataBase Open Failed