RT server not found after a period without activities

Hi,

What the heck is the reason because RT shows a Server not found page
after some time without to do something? That has been happening when I,
after a couple of time, going to click in any link inside the RT.

I use to let the RT web interface open, actually, througout the day,
business hours.

Thanks in advance for your time,

Wagner Pereira

PoP-SP/RNP - Ponto de Presen�a da RNP em S�o Paulo
CCE/USP - Centro de Computa��o Eletr�nica da Universidade de S�o Paulo
http://www.pop-sp.rnp.br
Tel. (11) 3091-8901