LAN won't go down

Hello,
I’ve installed Routeros 6.38.1 x86 on an old Supermicro server, with 2x Intel 82574L LAN cards (onboard). When LAN cables are plugged in, all works ok, but if I unplug network cables, RoutersOS detects interfaces as UP.
Do you have any ideas to make RouterOS detects NIC UPs and DOWNs?

I read that Intel 82547L is supported by RouterOS

Thank you
Stefano
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