Cannot curl/ping to the host ip from inside docker container - docker

Question

I used docker and have nginx as a reverse proxy with just 80 and 443 ports exposed on host machine. I also have other containers and nginx under same network with bridge driver. The problem is I am unable to curl/ping host machine IP from inside docker container. I can access other containers with local DNS though. Please help.
DOCKER-COMPOSE FILE
version: "3"
services:
mongo:
image: mongo
container_name: mongo
environment:
- MONGO_INITDB_ROOT_USERNAME=rootmongo
- MONGO_INITDB_ROOT_PASSWORD=p4Ss#1234#
# For Persistance
volumes:
- db_data:/data/db
- db_backup:/backup
- db_dump:/dump
restart: always
networks:
- app-network
wealth_advisor_admin:
build:
context: ./adminpanel
dockerfile: Dockerfile
image: wealth_advisor_admin
depends_on:
- mongo
restart: unless-stopped
container_name: wealth_advisor_admin
networks:
- app-network
wealth_advisor_web:
build:
context: .
dockerfile: Dockerfile
image: wealth_advisor_web
container_name: wealth_advisor_web
restart: unless-stopped
depends_on:
- mongo
networks:
- app-network
webserver:
image: nginx:mainline-alpine
container_name: webserver
restart: unless-stopped
ports:
- "80:80"
- "443:443"
volumes:
- web-root:/var/www/html
- ./nginx-conf:/etc/nginx/conf.d
- certbot-etc:/etc/letsencrypt
- certbot-var:/var/lib/letsencrypt
- dhparam:/etc/ssl/certs
depends_on:
- wealth_advisor_web
- wealth_advisor_admin
networks:
- app-network
certbot:
image: certbot/certbot
container_name: certbot
volumes:
- certbot-etc:/etc/letsencrypt
- certbot-var:/var/lib/letsencrypt
- web-root:/var/www/html
depends_on:
- wealth_advisor_web
command: ---------------
volumes:
certbot-etc:
web-root:
certbot-var:
db_data:
db_backup:
db_dump:
dhparam:
driver: local
driver_opts:
type: none
device: /root/trade/dhparam/
o: bind
networks:
app-network:
driver: bridge