UiPath errors / Connectivity
No connection could be made because the target machine actively refused it
Cause
The Robot service (Service Mode) cannot reach the Orchestrator HTTPS endpoint because the machine uses an unconfigured proxy, or port 443 is firewall-blocked.
Fix
Verify the Orchestrator URL is reachable from the machine via a browser and that outbound 443 is open. If behind a proxy, add proxy settings to uipath.config under %ProgramFiles%\UiPath\Studio\. Restart the UiPath Robot Service, then reconnect from the Assistant.
Part of the Automation Error Index — UiPath errors: browse all.
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