if I use : IPAddress server(127,0,0,1); I get conexion, but I don´t read anything : I don´t found the file.
Do you know why? 127.0.0.1 is, like localhost, a special IP address that refers to the server that the client is running on.
The Arduino as client is not running a server, so, of course the page isn't on the server.
f I use : IPAddress server(192,168,1,1); I get conexion and i read the info of router
So, that is clearly the IP address that the router assigns to itself. What IP address is the router assigning to the Arduino? THAT is the only address you can use on the Arduino.
What IP address is the router assigning to the PC that is the server? That is the ONLY address you can use for the server.