HI Martin,
I have tried to install the AOS01 one more time and selecting the Database which I already have.
Installation got failed: with this info in the log:
-->DynamicsSetupLog
2021-04-20 15:17:26Z ******************************************************************************************************
2021-04-20 15:17:26Z Adding account 'Domain\admin' as a login in Microsoft SQL Server.
2021-04-20 15:17:26Z Adding account 'Domain\admin' as a login in Microsoft SQL Server.
2021-04-20 15:17:26Z Creating stored procedures for local sql server. LoginName: 'Domain\admin'.
2021-04-20 15:17:27Z Creating stored procedure 'CREATETEMPDBPERMISSIONS_POL-AX_01'.
2021-04-20 15:17:27Z Creating stored procedure '[dbo].[CREATESERVERSESSIONS]'.
2021-04-20 15:17:27Z Creating stored procedure '[dbo].[CREATEUSERSESSIONS]'.
2021-04-20 15:17:27Z Creating stored procedure '[dbo].[getNumInternal]'.
2021-04-20 15:17:27Z Creating stored procedure '[dbo].[sp_GetNextRecId]'.
2021-04-20 15:17:27Z isolation level = read committed
2021-04-20 15:17:27Z ALTER DATABASE [AXDB13] SET READ_COMMITTED_SNAPSHOT ON
2021-04-20 15:17:57Z Error executing command: ALTER DATABASE [AXDB13] SET READ_COMMITTED_SNAPSHOT ON
2021-04-20 15:17:57Z Reason: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
2021-04-20 15:17:57Z ALTER DATABASE statement failed.
2021-04-20 15:17:57Z ******************************************************************************************************
2021-04-20 14:10:57Z at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
2021-04-20 14:10:57Z at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
2021-04-20 14:10:57Z at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
2021-04-20 14:10:57Z at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
2021-04-20 14:10:57Z at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
2021-04-20 14:10:57Z at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
2021-04-20 14:10:57Z at Microsoft.Dynamics.Setup.Components.DatabaseSqlBusiness.SetRcsiForSqlServer()
<-- DynamicsSetupLog
Is the same Admin user that I use for AX at the beginning. also I have installed a new AOS with a new database and it works (all the time using the same admin user).
any clue?