DigitalOcean Load Balancer and Nginx

Hello, I have two droplets each of them has Nginx running on it on port 80 as a reverse proxy for a Node JS application running on port 3000. If I access any of these droplets by port 80 or 3000 it responds successfully. I added a DigitalOcean load balancer in front of these two droplets yet its status is down and it sees the two droplets as down too. I tried that for both ports 80 and 3000 for the rule and health check URL.

Did you face such issue and do you have any recommendations to fix that?

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Do you see the health checks in your nginx logs? Are the health checks generating an error? That is where I would start with this.

Also, try visiting your site using your domain name, and also by IP only. Does it work in both cases?