My WinForms application have an error on client machine,when i login to application their are error Occured i.e., "Instance Failure".
then i tried many solutions for this error but still same error occured.plzz give me proper solution for this.Their connection string is as follows:<connectionstrings>
connectionString="Data Source=NOTEBOOK\SQLEXPRESS;Initial Catalog=dbLn;User ID=sa;Password=sa1"
What I have tried:
checked all sql services,integrated secuirity=true in connection strings,many times changed data source name ,But still this error occured