Grafana doesn't connect to influxdb

What Grafana version and what operating system are you using?
10.2.2

What are you trying to achieve?
Add data source from influxdb

How are you trying to achieve it?
On the web interface


I entered the credentials of my grafana in the Basic Auth Details


I entered the credentials of my influxdb in the Basic Auth Details

What happened?
Error. I checked systemctl status grafana-server and it says “Error performing influxdb healthcheck”

How should I continue troubleshooting?

i have same problem.
Grafana/Influxdb run as docker on synology.
Both are in a new Network named Docker “bridge”

Most Tutorials use old Version, with Database Name, Bucket …
In the LOG: Connection refused

Someone a solution? : )

BR K