Issue with puli wireguard and pihole

Technical Support for Routers VPN, DNS, Leaks
1

Hello!
My configuration is as follows:

Home network with wireguard server configured in the router and a pi running pihole 192.168.1.3

Glinet puli configured in lte with wireguard client to the home router using pihole as dns.
Result:
I cannot reach the internal domain names in the network ig server.home 192.168.1.2 (A record in pihole).
I can reach via IPs.
If i run nslookup server.home no answer unless i specify pihole ip to use.

I also tried to give dhcp option 6,192.168.1.3 to the clients, no luck

Do you have any idea what dns is my puli using?

2

Change wireguard client conf to use pihole IP as DNS server:
Please refer to:

3

This is done already.
The issue is that clients connected to glinet are not using it, and the glinet is not using it as well.

4

Please check the puli dns by command:

cat /tmp/resolv.conf.wg

“Allow Remote Access LAN” should be turned on at wireguard server side.
Is the pihole DNS server the same subnet with wireguard server’s LAN or WAN?