Keycloak with Azure container app

Hi Experts,

I am new to Azure. We deployed keycloak in Azure ContainerApp as TCP and forwarded the request to HTTPS via Application Gateway. But We are facing a network issue when we give multiple requests to the keycloak. I noticed it is happening when the replica increased from 1 to 2.

Keycloak :- 22.0.1

Port:  TCP

Replicas :- 1 to 30 ( condition if 30 request)

Properties:
env:
- name: KEYCLOAK_ADMIN
value: admin
- name: KEYCLOAK_ADMIN_PASSWORD
value: admin
- name: KC_PROXY
value: edge
- name: KC_DB
value: mysql
- name: KC_DB_URL
value: jdbc:mysql://xxx:3306/keycloak?useSSL=false
- name: KC_DB_USERNAME
value: keycloak
- name: KC_DB_PASSWORD
value: xxx
- name: TZ
value: America/New_York
- name: KC_HOSTNAME_ADMIN_URL
value: https://keycloakmts.atomiq.us/
- name: KC_HOSTNAME_URL
value: https://keycloakmts.atomiq.us/
- name: KC_HOSTNAME_DEBUG
value: 'true'
- name: KC_HOSTNAME_STRICT_BACKCHANNEL
value: 'true'
- name: KC_CACHE
value: ispn