Why does a smartphone not ping a computer on the local network, although it works the other way around?

Question

Computer networks

I am learning to develop web applications and for this it is convenient to run a web server to which other devices on the local network can connect. I use a computer on which the server is running, and a smartphone on the same Wi-Fi network is used as a third-party client.

On the MTS router, this worked out of the box, but for some reason it fails on the Keenetic router, no matter how much I tried to configure.

Whether here advised to look devices respond. Initially, I checked from a computer - everything works, then I decided to check it from a smartphone. To do this, I downloaded the application and for testing checked ping to myself and to the address at which I connect to the admin panel. These addresses work, but for some reason the computer's address doesn't, it doesn't respond.

Answer 1

A significant percentage of WiFi-APs use isolated wireless mode by default - i.e. the wireless client is only allowed traffic to the WAN interface. To a wired LAN segment or to another wireless client - traffic is blocked.

Answer 2

who set up the computer? :))
icmp-response allowed, ping enabled?
on kinetics, ping to a local wired network can also be closed

Answer 3

We summarize.
Disable the firewall on the PC
Disable the isolate client function in the settings or the kinetics local network or in the kinetics wifi settings, I don’t remember where they are exactly