Node red calls service without connection to HA

I have just started to run node red and fails with my sequencies. I’m starting with turning lights on and off.
In my node red log I have rows like this:

8 Feb 21:55:55 - [error] [api-call-service:Tänd i fönstret] Call-Service attempted without connection to server.
8 Feb 21:55:55 - [error] [api-call-service:Tänd i hall] Call-Service attempted without connection to server.
8 Feb 21:55:57 - [info] [server:Home Assistant] Connecting to http://supervisor/core
8 Feb 21:55:57 - [info] [server:Home Assistant] Connected to http://supervisor/core

It looks like node red calls servicies in HA before there is a connection.

When I edit the nodes in my sequencies I get help with getting completion help when editing servicies or entities so at this time there is a connection.

My node red config looks like this:

credential_secret: <secret>
dark_mode: false
http_node:
  username: ''
  password: ''
http_static:
  username: ''
  password: ''
ssl: false
certfile: fullchain.pem
keyfile: privkey.pem
require_ssl: false
system_packages: []
npm_packages: []
init_commands: []

I only edit the credentials and set the ssl options to false.
My understanding was that I should configure as little as possible.

I apparently miss something. Anyone who knows what?

Running HA core-2021.2.1 and node red 8.1.1

If you double click on your call service node have you have a valid Server ?

Is the below checked (this assumes that you are using the add-on…)

Yes, it looks like it. I set the name to something else than you have.
When I uncheck “I use the Home Assistant add-on” I can see the standard adress http://supervisor/core and an access token.

In the log I printed in my first post node red is connecting to HA after the call. If I know trigger the same sequence, my light is turned on. I hope it will stay connected now.