Hi Javier,

Please try the following steps:

1. Power off the device(unplug the power adapter) 
2. Wait for 2 seconds, replug the power back in
3. Wait for 3 minutes for the device to start up 
4. Press the reset button for less than 1 seconds to do a soft reset 
5. Wait for 5 seconds. This should set the light to slow blinking. 
6. Then you can go to the Netro app -> settings-> controller -> change wifi network/password.

If it still does not work. Please contact through support@netrohome.com

Thanks,

Netro Inc