Trying to route from Traefik to external ip in K3s

Traefik Traefik v3 (latest)
1

I'm trying to replicate

http:
  routers:
    adguard-rtr:
      rule: "Host(`adguard.{{env "DOMAINNAME_1"}}`)"
      entryPoints:
        - websecure
      middlewares:
        - chain-private@file
      service: adguard-svc
      tls:
        certResolver: dns-cloudflare
        options: tls-opts@file
    adguard-local:
      rule: "Host(`adguard.{{env "DOMAINNAME_1"}}`) && (ClientIP(`10.0.10.0/24`) || ClientIP(`192.168.0.0/24`) || ClientIP(`10.0.69.0/24`))"
      entryPoints:
        - websecure
      middlewares:
        - chain-private
      service: adguard-svc
      tls:
        certResolver: dns-cloudflare
        options: tls-opts@file
      priority: 100
  services:
    adguard-svc:
      loadBalancer:
        servers:
          - url: "http://192.168.0.53"

in k3s.

I have tried using EndpointSlices, Endpoints, Regular services but nothing seems to be working.

I'm new to k3s, but i've had no problem setting up containers in k3s and getting Traefik to proxy them, only external services hosted on other computers on my LAN.

apiVersion: v1
kind: Service
metadata:
  name: adguard
spec:
  ports:
    - port: 80
      # targetPort has to match the EndpointSlice port
      targetPort: 80
  #clusterIP: 192.168.0.53
  type: ClusterIP
---
apiVersion: discovery.k8s.io/v1
kind: EndpointSlice
metadata:
  name: adguard-endpoint # by convention, use the name of the Service
                     # as a prefix for the name of the EndpointSlice
  labels:
    # You should set the "kubernetes.io/service-name" label.
    # Set its value to match the name of the Service
    kubernetes.io/service-name: adguard
addressType: IPv4
ports:
  - appProtocol: http
    protocol: TCP
    port: 80
endpoints:
  - addresses:
      - "192.168.0.53"

seems like it should work, and I can see the endpoint in kubectl point to where it should, and the service seems to use it, but I either get gateway timeouts, or everything else i've tried gives me 404s