Cannot resolve name server after moving to another network

[amratya01]

but still can't understand how pihole still works

[deHakkelaar]

ICMP seems to get through to 8.8.8.8 (from traceroute output).
But DNS doesnt (from dig).
You haven't answered yet if have checked for rebind protection or similar on the router ?
I'm outta ideas.

EDIT: maybe one idea:

dig ns1.pi-hole.net @1.1.1.1

?

[amratya01]

ok, I had this option On, and when I switched it off.. it just worked
I'm using GL.iNet GL-AR750S-Ext (Slate) router

pi@raspberrypi:~ $ dig ns1.pi-hole.net @8.8.8.8

; <<>> DiG 9.11.5-P4-5.1+deb10u1-Raspbian <<>> ns1.pi-hole.net @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49435
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;ns1.pi-hole.net.		IN	A

;; ANSWER SECTION:
ns1.pi-hole.net.	2966	IN	A	185.136.96.96

;; Query time: 27 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed Aug 19 16:57:28 CEST 2020
;; MSG SIZE  rcvd: 60

[deHakkelaar]

Post make model of the router for others to find ?
And mark your last reply as solution pls ?

[amratya01]

Sure, but how this could be related? even if it still sends the DNS 192.168.8.105 hard coded to itself, it should work... right?!

[deHakkelaar]

For the Pi-hole host, 8.8.8.8 and 8.8.4.4 is hard coded for DNS:

@amratya01

interface wlan0
        static ip_address=192.168.8.105/24
        static routers=192.168.8.1
        static domain_name_servers=8.8.8.8 8.8.4.4

[amratya01]

and the rebind attack is still on

[amratya01]

Thank you @deHakkelaar and @jfb for your time and troubleshooting