dhcpcd and hostname in server DNS

[dmpogo]

So I have this router from my internet provider which serves as DHCP server and pushes itself as as DNS server for a local LAN.

so if I connect my phone, or tablet or Chromcast device, look at the name they are seen by the router, and do
$ dig Chromcast (for example), I get and A record from a router.

Or I can also do

$ dig Chromcast.homenet and it works (given that homenet is what I put as a LAN domain name in the router).

So it all works for my wife's Mac as well

But not for my two Gentoo machines. The answer for DNS query returns empty. The only other machine on the network that has the same issue is HP printer.

Now I can configure on the router static leases based on MAC, where I can put a hostname. Does not help.
Again, with my wife's Mac, if I do that, and give it a name with a static leases, it is properly registered in DNS database.

So, I am thinking that it may somehow do with dhcpcd on Gentoo side. I use dhcpcd to configure the network (no net.eth0 etc scripts), and use plain default configuration.

Anybody has any hint ?

[alamahant]

Please post the output of

[dmpogo]

Thanks !

I did put hostname_short as per your advice and dhcpcd.conf, iI is better for my use case in the future, but the issue seems to be on router side after all
It looks like if you do some reconfiguration of the router and it sees the hostname already present in the DNS base, it creates a new DNS entry for hostname-2.

So here is my example

on Gentoo box