HI,

I am using web service as my middle tier in my vb.net application.
My application is working fine if I continuously work on the project.
But if I leave my system for few minutes, I getting the error Object Reference Not set to the instance of an Object and then if i try to access the web services, I am getting Time Out expired error.

Can any one plz. help me in solving this problem as my product should go live with a couple of days.