I've used wireguard for a pretty long time on my server and the phone as a client. I've had the same configuration for at least 4-5 years and never had issues. Last week I moved to using pihole in a container with a macvlan interface, so it has a different IP address than my physical server. Then I went and changed the DNS server IP on the wireguard config on the phone. When I reconnected I see I can't connect to any local IP address like I used to and I can't figure out why.
The local LAN is 10.11.12.0/24, the VPN is on 10.11.13.0/24.
I am able to connect and can ping 10.11.12.77, the IP address of the server, but nothing else. I have two RPis running as mpd servers and I used to be able to connect to them too, but not anymore. Their IP addresses are 10.11.12.105 and .106.
Also, before the dns change I was able (of course!) to use the local DNS I set up on the pihole, but now I'm not able to connect to the new DNS (.55) so I can't get any local address to resolve.
I'm looking for some hints on what I'm doing wrong. Please help.