Cannot access other container when deploy tailscale as a docker container

1

Hi everyone,
I have a problem regarding access other container when deploy tailscale as a docker container. To be specifically, I am setting up a Virtual machine on Oracle cloud and using docker compose to deploy 3 container:

  1. Adguard
  2. Wireguard
  3. Taiscale
    My purpose is I want to use adguard container act as a private dns server and other 2 containers will resolve dns request from adguard container. I did create a private network and assigned each container with their own prive ip adress ie:
  4. Adguard = 10.2.0.100
  5. Wireguard = 10.2.0.3
  6. Taiscale = 10.2.0.2
    Then point dns (2),(3) to (1) and it works.
    But the problem is I cannot access adguard home page while connecting via tailcale. In contrast, it works properly when connecting via wireguard.
    Enclosed herewith is my docker compose file for your reference. Please suport if you’ve got experience in this issue.
version: "3.8"

networks:
  private_network:
    ipam:
      driver: default
      config:
        - subnet: 10.2.0.0/24

services:
  wg-easy:
    depends_on: [adguard]
    environment:
      # ⚠️ Required:
      # Change this to your host's public address
      - WG_HOST=

      # Optional:
      - PASSWORD=
      # - WG_PORT=51820
      # - WG_DEFAULT_ADDRESS=10.8.0.x
      - WG_DEFAULT_DNS=10.2.0.100
      - WG_PERSISTENT_KEEPALIVE=25
      # - WG_MTU=1420
      # - WG_ALLOWED_IPS=192.168.15.0/24, 10.0.1.0/24
      
    image: weejewel/wg-easy
    container_name: wg-easy
    volumes:
      - .:/etc/wireguard
    ports:
      - "51820:51820/udp"
      - "51821:51821/tcp"
    restart: unless-stopped
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    sysctls:
      - net.ipv4.ip_forward=1
      - net.ipv4.conf.all.src_valid_mark=1
    networks:
      private_network:
        ipv4_address: 10.2.0.3

  tailscale:
    depends_on: [adguard]
    container_name: tailscaled
    image: tailscale/tailscale:stable
    restart: unless-stopped
    #privileged: true
    #command: tailscaled
    volumes:
      - "/var/lib:/var/lib"
      - "/dev/net/tun:/dev/net/tun"
    networks:
      private_network:
        ipv4_address: 10.2.0.2
    dns:
      - 10.2.0.100

  adguard:
    container_name: adguard
    image: adguard/adguardhome
    restart: unless-stopped
    hostname: adguard
    # Volumes store your data between container upgrades
    volumes:
      - "./adguard/opt-adguard-work:/opt/adguardhome/work"
      - "./adguard/opt-adguard-conf:/opt/adguardhome/conf"
    networks:
      private_network:
        ipv4_address: 10.2.0.100```
Thank you in advance for your help. Hope to get support soon. 
Regards.