Basically, address reservation for specific MAC addresses doesn't seem to work properly (it does whatever the hell it wants at any given time).
I have around 24 devices with reserved IP addresses. For a few of them, seemingly random, the router offers an IP from the DHCP pool instead of the one I reserved.
For example, you can clearly see the reserved address for this MAC:
And this is what happens when the client requests a new IP address, as seen in the log:
2020-10-03 16:10:36  DHCPD: Recv DISCOVER from 08:00:27:73:01:64
2020-10-03 16:10:36  DHCPD: Send OFFER with ip 192.168.1.105
2020-10-03 16:10:36  DHCPD: Recv REQUEST from 08:00:27:73:01:64
2020-10-03 16:10:37  DHCPD: Send ACK to 192.168.1.105
This happens with other three or 4 hosts with reserved addresses. I've done multiple restarts of the router and clients, removed and re-added the configurations, nothing seems to work. I even removed ALL reserved IP addresses and re-added them all, to no avail. This seriously messes up my IOT stuff setup...
Anyone facing a similar issue?