OT: strange network problem

[Erez D]

I've encountered a network problem

i have a mac and a win10 machine connected to a 4 port Gbit wifi6 AP
(switch mode).
a third eth from the AP goes to the router which is also a DHCP server

everything works well until the mac goes to sleep.
when the mac goes to sleep, the win10 machine looses it's ip address
which becomes a 169. address

as soon as i wake the mac up, the win machine regain a valid 10.0.0.x ip

i tried to replace the AP with a 4 port switch and got same results


any idea ?
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