How to block access to the router via wifi?

Question

WiFi

There was only an adsl modem, now I also installed a wifi router, and everyone who is connected to wifi has access to the router, the password is standard)
is it possible to make access to the admin panel of the router only via cable or how to close it, except for changing the admin panel password?
ps. dlink dir-300

Answer 1

802.11astral check - the connection is bad, neither the brand nor the model of the router is transmitted through the astral.
You need to climb all the tabs in the settings and find where you can switch the access mode.

Answer 2

on openwrt, you can block access from wlan with a firewall, but IMHO this is superfluous, just change the access password to the router