NodeMcu ESP8266, I can't connect to it's IP from network

I try to finish my 1st Arduino procect! : this project.
I uploaded the sketch, now ESP8266 is working in AP mode. I can see the network "ESP-TEMP", can connect it (without internet), can ping it without packet loss, but I can't connect to the IP it has (192.168.4.1) to give connection details to my router.

Any advise?
Thank you!