No connection to render without key- error unauthorized

[jellyfinuser]

What happened:

No connection to renderer, i not configured key, and from grafana docker, my dashboards are public.

logger=grafanaStorageLogger t=2025-09-18T09:51:19.895619758+02:00 level=info msg="Storage starting"
logger=rendering renderer=http t=2025-09-18T09:51:19.896883006+02:00 level=error msg="Failed to send request to remote rendering service" error="Get \"http://renderer:8081/render/version\": dial tcp 172.29.0.3:8081: connect: connection refused"
logger=rendering renderer=http t=2025-09-18T09:51:19.896918495+02:00 level=info msg="Couldn't get remote renderer version, retrying" err="failed to send request to remote rendering service: Get \"http://renderer:8081/render/version\": dial tcp 172.29.0.3:8081: connect: connection refused" try=0
logger=context userId=0 orgId=1 uname= t=2025-09-18T09:51:20.210863634+02:00 level=info msg="Request Completed" method=GET path=/api/live/ws status=-1 remote_addr=100.85.1.2 time_ms=27 duration=27.661759ms size=0 referer= handler=/api/live/ws status_source=server
logger=live t=2025-09-18T09:51:20.357655333+02:00 level=info msg="Initialized channel handler" channel=grafana/dashboard/uid/jbcye9byr884wk address=g

What you expected to happen:

Connection succesfully

How to reproduce it (as minimally and precisely as possible):

I configure grafna and image-render with docker compose:

but show this error when grafana start:

Anything else we need to know?:

Environment:

• Grafana Image Renderer version: grafana/grafana-image-renderer:latest
• Grafana version: grafana/grafana:latest
• Installed plugin or remote renderer service: remote in another docker
• OS Grafana Image Renderer is installed on: all in docker
• User OS & Browser:
• Others: