I have a application in asp.net 3.5 and Database is Sql server 2005.
\"Timeout expired. The timeout period elapsed prior to obtaining a connection from the
May be this is alltime multiple connection open issue, you are somewhere in your code opening connections and not closing them properly. use
using (SqlConnection con = new SqlConnection(connectionString))
{
con.Open();
}
Refer this article: http://msdn.microsoft.com/en-us/library/ms254507(v=vs.80).aspx, The Using block in Visual Basic or C# automatically disposes of the connection when the code exits the block, even in the case of an unhandled exception.