[web2py] localhost external machine.

[Mchurch]

Good morning to everybody.
I've a web2py application on a windows machine, the public windows ip 
machine is 192.168.100.191.
>From my mobile cell (nor tablet..) i can't get localhost.
I tried many times with 0.0.0.0, 127.0.0.1, and even if with the public ip 
192.168.100.191 but i always get "SITE DOWN FOR MAINTENANCE"
If I access localhost form the windows machine everything works fine.
It seems to me some permission problem....
Help please.
Many thanks.
Marco.