I am new to Loki and Grafana and right now I am trying to install Loki on a windows 2022 server. I am testing Grafana Loki in a Docker Compose setup, but not seeing any data ingested into Grafana dashboard. But I can see the logs in my Docker Dekstop.
Logs shown by Docker Desktop
Grafana Dashboard while Database is connected
Can anyone tell me where the problem might be?

I followed the installation from the Loki Documentation.

This is the Docker Compose Config:

version: "3"

networks:
  loki:

services:
  loki:
    image: grafana/loki:2.9.2
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - loki

  promtail:
    image: grafana/promtail:2.9.2
    volumes:
      - /var/log:/var/log
    command: -config.file=/etc/promtail/config.yml
    networks:
      - loki

  grafana:
    environment:
      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
    entrypoint:
      - sh
      - -euc
      - |
        mkdir -p /etc/grafana/provisioning/datasources
        cat <<EOF > /etc/grafana/provisioning/datasources/ds.yaml
        apiVersion: 1
        datasources:
        - name: Loki
          type: loki
          access: proxy 
          orgId: 1
          url: http://loki:3100
          basicAuth: false
          isDefault: true
          version: 1
          editable: false
        EOF
        /run.sh
    image: grafana/grafana:latest
    ports:
      - "3000:3000"
    networks:
      - loki

Grafana is successfully connecting to the data source “Loki” but usually it also adds the message that labels are found but in my case I only get a successful connection message, but no error message that can help me find out where the problem is.
here is the database URL setting:
database URL settings

I tried reinstalling the Docker Compose and the database but nothing changed. My only guess would be that there is an active filter in Grafana that is preventing me from seeing the logs or either the Host configurations are wrong