Always i m getting sign in problem, when i get singed in, after few it gets logged out, i dont why it was happening, do anyone feel like this.
I experience the same problem but I do not know the cause of it. I am sure that the administrators will solve the problem very fast
If you do not want to face the problem then Log Out using the button at top right. And then login again and click on "Remember Me" box. Then you won't have this problem.