DHCP lease time is only 2 hours.  If a device goes offline for more than that time it gets a new IP.  This is problematic for home automation systems like my Home Assistant server where all my devices are setup in for control, or my various home network services.  In corporate networks dhcp lease is in days not hours generally except for specific purposes.   Please provide configurable for this.   Great system other than that.  Causing me (and others I've seen closed forum post on) a lot of headache.