I've noticed that DHCP clients aren't showing hostnames any more, for new clients. Old ones are working fine. So for example my iphone shows as Jons-iphone-XS but a visitor to the house who has connected to the wifi just has a blank in the hostname column.
I've not changed anything but I have been regularly updating and am currently running 22.1.9_1.
Where should I be looking to try and figure out what's causing this, please?
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