I have a SQL Server Express installed on ULTIMATE03 running Windows 10. Visual Studio 2022 is running a console application. That console application fails to connect to the ULTIMATE03 machine. SQL Server Express server name is also ULTIMATE03.

using System;
using System.Linq;
using System.Data.SqlClient;
using System.Diagnostics;

namespace ConnectSQLExpress
{
    class Program
    {
        public static SqlConnection GetConnectionsString()
        {
            string x = "Server=ULTIMATE03\ULTIMATE03;Trusted_Connection=True;" +
                                       "Database=master;" +
                                       "Integrated Security=SSPI;" +
                                       "User Id = gmort; Password=gm6301" +
                                       "Connection timeout=30;";
            return new SqlConnection(x);
        }

        static void Main(string[] args)
        {
            using (SqlConnection myConnection = GetConnectionsString())
            {
                try
                {
                    SqlCommand myCommand = new SqlCommand("SELECT COUNT(*) FROM GAMESINFO " + "Values ('string', 1)", myConnection);
                    System.Diagnostics.Debug.WriteLine("ee");

                    myConnection.Open();

                    myCommand.ExecuteNonQuery();

                    SqlDataReader myReader = null;
                    myCommand.CommandText = "select * from students";
                    myReader = myCommand.ExecuteReader();
                    while (myReader.Read())
                    {
                        Console.WriteLine(myReader["firstname"].ToString());
                        Console.WriteLine(myReader["age"].ToString());
                    }
                }
                catch (Exception e)
                {
                    System.Diagnostics.Debug.WriteLine(e.ToString());
                }
            }
        }
    }
}

Getting error 26 consistently (shown below)