i have changed the network IP,
my HA network interface is on DHCP, i assign the static ip from the router by the mac address.

HA working fine but i started to see the below error on the HA

[homeassistant.components.dnsip.sensor] Exception while resolving host: (12, ‘Timeout while contacting DNS servers’)

also from the UDM i see the below error ( is the old DNS


was blocked from accessing by firewall rule:

Block Inter-Vlan Routing