NXDOMAIN on server but the router can resolve queries

[url004]

Hi. I am having a strange problem with some sites i get the nxdomain error on.
I have a small windows network with two Windows Server 2019 Domain Controllers running DNS.
DNS servers on DC's forward queries to TUF-AX-5400 router.
All clients get their IP's via DHCP with their DNS being that of the two DC's IP's.
When i try and access the website on my Windows network i get the NXDOMAIN error message yet, the router resolves the address no problem.
I have tried the following:

Change client's dns with 8.8.8.8 had no effect.
Disabling rebind protection had no effect.
I dissabled DoT and it had no effect.
Clearing the router and dns servers cache also did not work.

Please can someone help with this? Help will be much appretiated.

 

[url004]

Hi. I am having a strange problem with some sites i get the nxdomain error on.
I have a small windows network with two Windows Server 2019 Domain Controllers running DNS.
DNS servers on DC's forward queries to TUF-AX-5400 router.
All clients get their IP's via DHCP with their DNS being that of the two DC's IP's.
When i try and access the website on my Windows network i get the NXDOMAIN error message yet, the router resolves the address no problem.
I have tried the following:

Change client's dns with 8.8.8.8 had no effect.
Disabling rebind protection had no effect.
I dissabled DoT and it had no effect.
Clearing the router and dns servers cache also did not work.

Please can someone help with this? Help will be much appretiated.

P.S I found the following in the logfile "Mar 18 13:19:19 router kernel: br0: received packet on eth5 with own address as source address"
the following i get stubby log:
ipv4 2 udp 17 4 src=127.0.0.1 dst=127.0.1.1 sport=60846 dport=53 src=127.0.1.1 dst=127.0.0.1 sport=53 dport=60846 mark=0 iqprio=0 swaccel=0 hwaccel=0 use=2

The above message appears every few seconds.