2 weeks ago I upgraded my NG8200, from 23.09.1 to 24.03.
Since then I'm having issues, apparently with devices (on multiple subnets/VLAN's/ifaces) not always getting an IP address over DHCP.
The behaviour is very erratic. Some devices come back after a few hours (lease time is default 7200s) but my Android phone hasn't been able to connect to both of my SSID's for days.
My laptop, next to it, doesn't seem to have any issues at all.
I'm using the Kea DHCP since version 23.0?, since ISC was getting end-of-life.
WIFI is Unifi with 6 older AP's, which have always worked well. The Unifi controller shows a recent warning that a rogue DHCP server has been seen on one of the (almost empty) VLAN's However, there's no rogue DHCP server (checked in several ways).
I've just reverted back to 23.09.1 (I love the boot environments !!) and my phone immediately connected, with lightning-fast coms.
Anybody any idea about this issue, or having similar experiences ?