Hello - just updated to 21.02 and I'm having DNS issues. I am running a pihole locally for DNS. Using OpenWrt's DHCP setting, I'm pushing the DNS server IP (192.168.1.3) to clients and that seems to work. However, the router itself insists (in /etc/resolv.conf) on using 127.0.0.1 as the DNS server, which fails.
I've tried (in Luci) going to Interfaces->LAN and adding the IP under "Use custom DNS servers", but that didn't resolve the issue. If I edit /etc/resolv.conf to point to 192.168.1.3, I get DNS resolution but of course it gets overwritten if I make any changes to DHCP etc.
I could use some help! I'd tried what seems obvious and what I found from a web search. Thanks in advance.