Power Automate errors / Connectivity
HTTP request failed: A connection attempt failed because the connected party did not properly respond.
Cause
The HTTP action could not establish a TCP connection within the timeout, typically because the host is unreachable, firewalled, or slow.
Fix
Verify the target URL is publicly reachable and not firewall-blocked; whitelist Power Automate outbound IPs if behind a corporate firewall. Confirm the endpoint supports TLS 1.2+. Configure a custom retry policy and higher timeout on the HTTP action. For on-premises endpoints, use the on-premises data gateway.
Part of the Automation Error Index — Power Automate errors: browse all.
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