no response http

[xavi220]

*WM: AutoConnect
*WM: Reading SSID
*WM: SSID:
*WM:
*WM: Reading Password
*WM: Password:
*WM: Connecting as wifi client...
*WM: Connection result:
*WM: 0
*WM:
*WM: Configuring access point...
*WM: ESP8266
*WM: AP IP address:
*WM: 192.168.4.1
*WM: HTTP server started
*WM: Handle root
*WM: 204 No Response
*WM: Handle root
*WM: 204 No Response
*WM: 204 No Response

[schsys]

How can I restore the initial values to change the network that is configured on the board?