InfluxDB Error: Bad Geteway

I’m not able to understand how to solve this problem.
I read lot of article related to this issue in grafana community but nothing effect on my problem. I need customize filtration based to requirement so that’s why I’m using InfluxDB data source.

Are you able to manually communicate (via browser or ping) with your influx instance to make sure that your networking configurations are all correct? Have you tried removing the password (just temporarily) to see if that helps?

Thanks for replying, Yes I checked network configuration and remove the password but is not working.

What about if you change the HTTP Method field to be blank (i.e. remove the POST). That is how my system is set up. Does that make any difference?

my system set up HTTP Method field is GET

If you change the HTTP Method field to be blank, does that make any difference?