> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hivenet.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Compute instance URLs and Bad Gateway errors

> What causes them and how to fix them fast

## What these URLs are

When you create a Compute instance, Hivenet generates a temporary web URL:

```text theme={null}
https://<instance-id>-8888.<location>.tenants.hivecompute.ai
```

<Note>
  UAE instances use an additional port at the end of the URL:\
  \
  https\://\<instance-id>-[8888.uae.tenants.hivecompute.ai:4443](http://8888.uae.tenants.hivecompute.ai:4443)
</Note>

These are public links to help you access web interfaces like:

* Jupyter notebooks
* Fooocus
* Stable Diffusion UIs
* Dashboards running on port 8888

## Why you might see "Bad Gateway"

Seeing a Bad Gateway error usually means one of these:

* **Your app isn’t running yet**
* **The app is listening only on \*\*\*\***`localhost`, not on `0.0.0.0`
* **The app is running on the wrong port** (e.g. 7865 instead of 8888)
* **HTTPS rate limit issues** (rare, but happens with repeated rapid reloads)

## Quick fixes

Here’s how to troubleshoot:

1. **Make sure your app is up**
   ```text theme={null}
   curl http://localhost:8888
   ```
   You should see HTML or a JSON response, not a timeout or error.
2. **Check the port** Your app must run on port 8888 for the Hivenet URL to work.
3. **Update binding address** Some apps default to:
   ```text theme={null}
   127.0.0.1:8888
   ```
   You need:
   ```text theme={null}
   0.0.0.0:8888
   ```
   Add `--host 0.0.0.0` if you're launching the app from the command line.
4. **Restart the app if needed** After changing host or port configs.

## When in doubt, forward the port yourself

If you can’t get the public link working, use SSH port forwarding:

```text theme={null}
ssh -L 8888:localhost:8888 ubuntu@<instance-id>.ssh.hivecompute.ai
```

Then open [http://localhost:8888](http://localhost:8888) in your browser. This is usually more reliable.