Need help: DHCP client on ether1 lost ip address - lease expire

Hi. I have MikroTik hAP ac2 (RouterOS 6.42).
There is a problem - every 20 minutes lease expired (red circle on attactment file). Please tell me how to increase these 20 min (as much as possible) ? Is it router’s problem ? Or is it provider’s problem ? Thanks in advance.
setup.png
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Looks like I found the “way” (for me).
I downgrade ROS to 6.41.2 and those red alerts are gone.
I tried 6.41.4 - same result, no red alerts about IP lease expired.

It looks like ROS’s programmers broke something in DHCP Client setting in 6.42+

It is wellknown, see the 6.42.1 topic.