Redis works only without a Passwort

Hi all,Today I installed Redis on our Plesk server in the Docker container. Before a server change, we had already used Redis and this plugin once.
Redis is set up correctly, a password is set. Via redis-cli I can log in with AUTH and password. The ping-pong test works.
I also updated the password in WP-Config.PHP.

define(‘WP_REDIS_PASSWORD’, ‘RedisServerPassword’);

But in wordpress I still get the error:
“NOAUTH Authentication required.”
The strange thing is that if I remove the password from the Redis server, it works. So it’s not a problem in communication or setup. It’s just that the password is ignored.

Does anyone have any idea about this?

Thank you and best regards