I have 4 deco M9+ in my home running on backhaul on my Cat6 wired network with ~30 devices connected between wifi and Wired. After a firmware upgrade, (I'm not sure which one) 2 devices.
My hue and Arlo Hubs have both intermittently not been assigned IP addresses since they upgrade . then some days on they both magically get an address and some weeks later will be removed. (they have been working in situ prior)
I've tried assigning a static IP to the device to no avail. The only similarity I can see is that they are both 100mbps devices. All my other wired devices are on 1000MBPS and working just fine