Connection String Error

Hello I need some help please.

I created a connection string in my web config. I then tried to call it in one of my c# pages but I get a "System.InvalidOperationException: Instance failure" every time I run it.

Please review my code and let me know what I am doing wrong.

Thank you in advance for all the help

Web Config

<appSettings>



<add key="AVConnection" value="Server=Server; Database=DB; User ID=sa; Password=PWD" />

</appSettings>

//////calling connection and running a simple SQL statment///////

protected void Page_Load(object sender, EventArgs e)

{

string ConnApp;

ConnApp = System.Configuration.ConfigurationManager.AppSettings["AVConnection"];

Response.Write(ConnApp);//the string is being passed this far

SqlConnection objConn = new SqlConnection(ConnApp);

SqlCommand sqlCMD = new SqlCommand("Select * FROM Employee", objConn);



objConn.Open();//this is where the error occures

SqlDataReader objRdr = sqlCMD.ExecuteReader();

Repeater1.DataSource = objRdr;

Repeater1.DataBind();

objConn.Close();

objRdr.Close();







}

ERROR PAGE

Line 29:          SqlCommand sqlCMD = new SqlCommand("Select * FROM Employee", objConn);
Line 30:         
Line 31:              objConn.Open();
Line 32:              SqlDataReader objRdr = sqlCMD.ExecuteReader();
Line 33:              Repeater1.DataSource = objRdr;

[InvalidOperationException: Instance failure.]
   System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +683775
   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628
   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359
   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
   System.Data.SqlClient.SqlConnection.Open() +111
   employeelist.Page_Load(Object sender, EventArgs e) in c:InetpubwwwrootFAUAVemployeelist.aspx.cs:31
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061