network path not found error

Question

I developed a small application for my acedamic project using c#, asp.net
the application was running smoothly in my computer
but when i am trying to give a demo it is showing network path not found
its loading login page after that when i am giving wrong credentials it is giving error other wise redirecting to the user page
so the the database connection working fine and i also changed the connection string names according to that system can you suggest a solution