# Realtime connections giving `TIMED_OUT` errors

If your Realtime connections in your application are giving `TIMED_OUT` errors, this often indicates an incompatibility between the version of `realtime-js` being used in your `supabase-js` client library package and your Node.js version. This issue happens when using versions of Node.js older than v22 with more recent versions of `supabase-js`.

**Why This Occurs:**
This happens due to a fundamental change made to fix various issues. See more details on why this change was made and solutions to fix it: [https://github.com/orgs/supabase/discussions/37869](https://github.com/orgs/supabase/discussions/37869)

**How to Resolve This:**

There are two primary options to fix this:

1. **Upgrade Node.js**: Upgrade your Node.js version to the latest Long Term Support (LTS) release, such as Node.js v24 as of November 2025.
2. **Explicitly set the WebSocket transport**: See the linked GitHub discussion above for a detailed guide on doing this.