@Kevin_Z Problem resolved. It was because of user I created in «My Family». I didn't know that every user created is automatically have «Bedtime» from 00:00 to 05:00.

@Kevin_Z Connected it to guest network but didn't help. Will try to reset router settings later today

I have a problem with internet on my mom's smartphone Tonino Lamborghini Antares. It's connected to my WiFi network via 2.4 Ghz. But it has no internet from 00 to 05 am. I haven't configured any...