Did this happen when upgradeing from .Net Framework 4.x to .Net 6 or when you went from .Net 5 to .Net 6 ?
Are you connecting to an On Prem (Local) Sql Server Database or Azure SQL ?
Is TLS 1.2 enabled ?
What does your connection string look like ? Try setting Encrypt=False
It happened when I went from .NET 5 to .NET 6. Its connection to On Prem Local SQL DB. How do I check if TLS 1.2 is enabled?
Anyhow, I added TrustServerCertificate=True, that helped resolve it?
Thanks
Daman, I got caught out by this at first. The default encryption state for SQL connectivity has changed with the move from Microsoft.Data.SqlClient v3.x.x to v4.x.x
EPiServer.Framework uses Microsoft.Data.SqlClient v3.x.x for .NET 5 and Microsoft.Data.SqlClient v4.x.x .NET 6 (or v5.x.x if you update EPiServer.Framework 12.11.0)
An error occurred while starting the application.
Unknown location
Microsoft.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, bool callerHasConnectionLock, bool asyncClose)
EPiServer.Framework.Initialization.InitializationEngine.InitializeModules()
Win32Exception: The certificate chain was issued by an authority that is not trusted.
SqlException: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)
Microsoft.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, bool callerHasConnectionLock, bool asyncClose)
Microsoft.Data.SqlClient.TdsParserStateObject.SNIWritePacket(PacketHandle packet, out uint sniError, bool canAccumulate, bool callerHasConnectionLock, bool asyncClose)
Microsoft.Data.SqlClient.TdsParserStateObject.WriteSni(bool canAccumulate)
Microsoft.Data.SqlClient.TdsParserStateObject.WritePacket(byte flushMode, bool canAccumulate)
Microsoft.Data.SqlClient.TdsParser.TdsLogin(SqlLogin rec, FeatureExtension requestedFeatures, SessionData recoverySessionData, FederatedAuthenticationFeatureExtensionData fedAuthFeatureExtensionData, SqlConnectionEncryptOption encrypt)
Microsoft.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, string newPassword, SecureString newSecurePassword, bool ignoreSniOpenTimeout, TimeoutTimer timeout, bool withFailover)
Microsoft.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, string newPassword, SecureString newSecurePassword, bool redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout)
Microsoft.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, string newPassword, SecureString newSecurePassword, bool redirectedUserInstance)
Microsoft.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, object providerInfo, string newPassword, SecureString newSecurePassword, bool redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, bool applyTransientFaultHandling, string accessToken, DbConnectionPool pool)
Microsoft.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
Microsoft.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
Microsoft.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
Microsoft.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
Microsoft.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, uint waitForMultipleObjectsTimeout, bool allowCreate, bool onlyOneCheckConnection, DbConnectionOptions userOptions, out DbConnectionInternal connection)
Microsoft.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource<DbConnectionInternal> retry, DbConnectionOptions userOptions, out DbConnectionInternal connection)
Microsoft.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource<DbConnectionInternal> retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, out DbConnectionInternal connection)
Microsoft.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource<DbConnectionInternal> retry, DbConnectionOptions userOptions)
Microsoft.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource<DbConnectionInternal> retry, SqlConnectionOverrides overrides)
Microsoft.Data.SqlClient.SqlConnection.Open(SqlConnectionOverrides overrides)
EPiServer.Data.Providers.Internal.ConnectionContext.<OpenConnection>b__15_0()
EPiServer.Data.Providers.SqlTransientErrorsRetryPolicy.Execute<TResult>(Func<TResult> method)
EPiServer.Data.Providers.Internal.ConnectionContext.OpenConnection()
EPiServer.Data.Internal.MARSConnectionContextHandler.CreateConnectionScope(bool requireTransaction, Action completeAction)
EPiServer.Data.Providers.Internal.SqlDatabaseExecutor+<>c__DisplayClass24_0<TResult>.<Execute>b__0()
EPiServer.Data.Providers.SqlTransientErrorsRetryPolicy.Execute<TResult>(Func<TResult> method)
EPiServer.Data.SchemaUpdates.Internal.DatabaseVersionRetriever.GetDatabaseVersion(bool forceRefresh)
EPiServer.Data.SchemaUpdates.Internal.DatabaseVersionValidator.GetStatus(IEnumerable<ConnectionStringOptions> connectionStringOptions)
EPiServer.Data.SchemaUpdates.Internal.DatabaseSchemaManagerImplementation+<>c__DisplayClass6_0.<EnsureDatabaseSchema>b__0(ISchemaUpdater u)
System.Linq.Enumerable+SelectIPartitionIterator<TSource, TResult>.ToList()
EPiServer.Data.SchemaUpdates.Internal.DatabaseSchemaManagerImplementation.EnsureDatabaseSchema(DataAccessOptions dataAccessOptions)
EPiServer.Data.DataInitialization.Initialize(InitializationEngine context)
EPiServer.Framework.Initialization.Internal.ModuleNode.Execute(Action a, string key)
EPiServer.Framework.Initialization.Internal.ModuleNode.Initialize(InitializationEngine context)
EPiServer.Framework.Initialization.InitializationEngine.InitializeModules()
InitializationException: Initialize action failed for Initialize on class EPiServer.Data.DataInitialization, EPiServer.Data, Version=12.11.0.0, Culture=neutral, PublicKeyToken=8fe83dea738b45b7
EPiServer.Framework.Initialization.InitializationEngine.InitializeModules()
EPiServer.Framework.Initialization.InitializationEngine.ExecuteTransition(bool continueTransitions)
EPiServer.Framework.Initialization.InitializationEngine.Initialize()
EPiServer.Hosting.Internal.EPiServerFrameworkHost.StartAsync(CancellationToken cancellationToken)
Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
QDX.Program.Main(string[] args) in
+Program.cs