InfluxDB data explorer add new server fails

InfluxDB 3
1

Hello there,

I installed influxdb3 core, the service is running fine and I generated my admin token.

When trying to add the server with the data explorer, I get an error:

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image1340×906 76.8 KB

The documentation doesn’t help at all and the logs for the explorer service are useless as well:

[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [CoreStrategy] Error in fetchWithErrorHandling for GET /ping (InfluxDB 3 Core)
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [CoreStrategy] AggregateError
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [InfluxProductService] Server returned 500 error during ping: Network error occurred: 
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [HttpExceptionFilter] HTTP Exception: Server error: Network error occurred: 
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [HttpExceptionFilter] HttpException: Server error: Network error occurred: 
    at InfluxProductService.tryPing (/app-root/_backend_app/main.js:1:1336097)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async InfluxProductService.detectProduct (/app-root/_backend_app/main.js:1:1333618)
    at async InfluxServerConfigService.createServerConfig (/app-root/_backend_app/main.js:1:1711292)
HttpExceptionFilter
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [InfluxServerConfigService] Error getting active config
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [InfluxServerConfigService] HttpException: Active configuration not found: Please configure and activate a server connection first
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [HttpExceptionFilter] HTTP Exception: Active configuration not found: Please configure and activate a server connection first
[Nest] 13  - 09/15/2025, 9:56:55 AM   ERROR [HttpExceptionFilter] HttpException: Active configuration not found: Please configure and activate a server connection first
    at InfluxServerConfigService.getActiveConfig (/app-root/_backend_app/main.js:1:1715723)
2

@LC_BTS I’m guessing you’re running Explorer in a Docker container. If that’s the case, localhost is trying to connect to the internal network of the container, not your local machine. To connect from a container to a process on your local machine, you need to use the Docker network, host.docker.internal. So your connection URL would be http://host.docker.internal:8181.