Problem with CI Session

[eluser]Arres[/eluser]
Thank you for reply.
It's CI version 2.1.3

The problem is quit complex.

I'm not using database for session.

The ip address is correct as I know my ip address is that.

I'm running http.

I'm sending username and password in ajax request and it it setting session if details are correct.


The point is, the project was working great early yesterday. Everything on every browser was fine.
I made some changes and and got this problem.

But as i keep copy of each day work, I uploaded the 1 day old version. and that was working before, but not working now.

It is not working on chrome/internet explorer 10/safari
But it is working fine on firefox.

Moreover, The big thing. It is working fine on all browsers at my localhost but not working on server at above mentioned browser.
Please help!