Article - CS357986
Following successful installation of ThingWorx Flow, login to Flow url returns 404 and the ValidateFlowSetup service fails with error "Failed to connect to Flow"
Modified: 14-Aug-2025
Applies To
- ThingWorx Platform 9.0 to 9.7
Description
- Unable to login to Flow url
- Flow server_name and port were validated in <nginx_home>\conf\conf.d\vhost-flow.conf
- ThingWorx Foundation and FLow are unable to validate communication
- Using the WorkflowSubsystem service ValidateFlowSetup, the following message is returned:
[FLOW-API-02] - Failed to connect to Flow. Ensure that you are accessing ThingWorx via Nginx URL. Ensure that all Flow services are running and are healthy. In case of self-signed certificate, make sure that correct CN is provided. [FLOW-OAUTH-02] - Failed to connect to Flow OAuth service. Check whether Flow keys are imported in ThingWorx KeyStore.
- Flow installation logs show no errors
- Accessing Flow from ThingWorx Composer, it does not open the correct Flow URL
- Flow application is not accessible from ThingWorx
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