Problem connecting Redis Credentials

Questions
1

Describe the problem/error/question

Unable to connect Redis Now, Earlier my workflows were working fine with the same connection but somhow its stop working now. And after investigating I found that my Redis is faliing and when cheked found the Credential are not getting verified.

getting this error when connecting.

I use Upstash for the Redis database.

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What is the error message (if any)?

Couldn’t connect with these settings

No testing function found for this credential.

Information on your n8n setup

  • n8n version: Version 1.120.4
  • Database (default: SQLite): SQLite
  • n8n EXECUTIONS_PROCESS setting (default: own, main): main
  • Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
  • Operating system: Ubuntu 24.x
2

This issue typically occurs when there’s a problem with the Redis connection settings or when the credentials have changed. For Upstash Redis, try these steps:

1. Verify your Upstash Redis endpoint and password are correct in the credentials

2. Check if your Upstash instance is running and accessible (try connecting via redis-cli)

3. In n8n, recreate the Redis credential from scratch rather than editing the existing one

The “No testing function” message is normal for Redis credentials - it doesn’t affect functionality. The real error is likely in the connection details.