I created mesh network with Deco m4 but when I am connected with my LG Q7 phone it looses internet connection all the time.

The status of wifi connection is OK, but the internet works only for about a minute or two, then I must disable wifi and enable again to recconect and then I am again OK for a minut or two. Other wired devices and wireless devices works OK.

I already try to disable 5g, assign Address Reservation to the pohone, disable fast roaming itd...

Nothing helps...

On old TL-WR841N phone worked OK.