n8n - 💡(How to fix) Fix Repeated error in workflow: "The connection cannot be established" [1 comments, 2 participants]

Describe the problem/error/question

I am getting the error message "The connection cannot be established" in some runs of one of my workflows. It only happens sometimes and then if you rerun it, it is fine.

What is the error message (if any)?

The connection cannot be established, this usually occurs due to an incorrect host (domain) value Error details

From HTTP Request Error code ENOTFOUND Full message getaddrinfo ENOTFOUND api.stripe.com Request { "headers": { "accept": "application/json,text/html,application/xhtml+xml,application/xml,text/;q=0.9, image/;q=0.8, /;q=0.7", "Authorization": "hidden" }, "method": "GET", "uri": "https://api.stripe.com/v1/payment_intents/search?query=metadata[\"chargebee_invoice_id\"]:\"CA-8446\"", "gzip": true, "rejectUnauthorized": true, "followRedirect": true, "resolveWithFullResponse": true, "sendCredentialsOnCrossOriginRedirect": true, "followAllRedirects": true, "timeout": 300000, "encoding": null, "json": false, "useStream": true } Other info Item Index 0 Node type n8n-nodes-base.httpRequest Node version 4.2 (Latest version: 4.3) n8n version 1.123.27 (Cloud) Time 4/14/2026, 1:40:04 PM Stack trace NodeApiError: The connection cannot be established, this usually occurs due to an incorrect host (domain) value at ExecuteContext.requestWithAuthentication (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_24a3228104b5da398564ecc498d597f6/node_modules/n8n-core/src/execution-engine/node-execution-context/utils/request-helper-functions.ts:1294:10) at processTicksAndRejections (node:internal/process/task_queues:103:5) at ExecuteContext.requestWithAuthentication (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_24a3228104b5da398564ecc498d597f6/node_modules/n8n-core/src/execution-engine/node-execution-context/utils/request-helper-functions.ts:1594:11)

Problem in node ‘HTTP: Check Existing PI‘ The connection cannot be established, this usually occurs due to an incorrect host (domain) value

Please share your workflow/screenshots/recording

These are the first 3 nodes, it always fails on node 2

{ "nodes": [ { "parameters": { "httpMethod": "POST", "path": "cb-invoice-generated", "responseMode": "lastNode", "options": {} }, "id": "REDACTED", "name": "CB Webhook: invoice_generated", "type": "n8n-nodes-base.webhook", "typeVersion": 2, "position": [ -1440, -272 ], "webhookId": "cb-invoice-generated" }, { "parameters": { "url": "=https://api.stripe.com/v1/payment_intents/search?query=metadata["chargebee_invoice_id"]:"{{ $('CB Webhook: invoice_generated').item.json.body.content.invoice.id }}"", "authentication": "predefinedCredentialType", "nodeCredentialType": "stripeApi", "options": {} }, "id": "REDACTED", "name": "HTTP: Check Existing PI", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ -1216, -272 ], "credentials": { "stripeApi": { "id": "REDACTED", "name": "Stripe account" } } }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict", "version": 1 }, "conditions": [ { "id": "idempotency-check", "leftValue": "={{ $('HTTP: Check Existing PI').item.json.data.length }}", "rightValue": 0, "operator": { "type": "number", "operation": "gt" } } ], "combinator": "and" }, "options": {} }, "id": "REDACTED", "name": "IF: Already charged?", "type": "n8n-nodes-base.if", "typeVersion": 2, "position": [ -992, -272 ] } ], "connections": { "CB Webhook: invoice_generated": { "main": [ [ { "node": "HTTP: Check Existing PI", "type": "main", "index": 0 } ] ] }, "HTTP: Check Existing PI": { "main": [ [ { "node": "IF: Already charged?", "type": "main", "index": 0 } ] ] }, "IF: Already charged?": { "main": [ [], [] ] } }, "pinData": {}, "meta": { "instanceId": "REDACTED" } }

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.

Share the output returned by the last node

The output is the error message above

Debug info

core

• n8nVersion: 1.123.27
• platform: docker (cloud)
• nodeJsVersion: 24.13.1
• nodeEnv: production
• database: sqlite
• executionMode: regular
• concurrency: 50
• license: enterprise (sandbox)

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: filesystem

pruning

• enabled: true
• maxAge: 720 hours
• maxCount: 25000 executions

client

• userAgent: mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/147.0.0.0 safari/537.36
• isTouchDevice: false

Generated at: 2026-04-14T12:55:12.537Z}