# Page Not Found

The URL `instrumentation/sequencers/nextseq-500-550/troubleshooting/000002446` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Demultiplex information from DRAGEN on the NextSeq 1000/2000](https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-reference_material-list/000002446.md)
- [Troubleshooting a Software Shutdown Issue Warning on the NextSeq 500/550 with NCS 4.0.X](https://knowledge.illumina.com/instrumentation/nextseq-500-550/instrumentation-nextseq-500-550-troubleshooting-list/000002449.md)
- [Troubleshooting Custom Sequencing Primers selected by mistake in manual mode on the NextSeq 500/550](https://knowledge.illumina.com/instrumentation/nextseq-500-550/instrumentation-nextseq-500-550-troubleshooting-list/000002843.md)
- [Troubleshooting Unable to Unload Reagents on the NextSeq 500/550](https://knowledge.illumina.com/instrumentation/nextseq-500-550/instrumentation-nextseq-500-550-troubleshooting-list/000002726.md)
- [NextSeq 500/550 Control Software v4.0.1 "Invalid Role" error with Local Run Manager v2.4.0](https://knowledge.illumina.com/instrumentation/nextseq-500-550/instrumentation-nextseq-500-550-troubleshooting-list/000002190.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://knowledge.illumina.com/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-reference_material-list/000002446.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://knowledge.illumina.com/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://knowledge.illumina.com/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/instrumentation/nextseq-1000-2000/instrumentation-nextseq-1000-2000-reference_material-list/000002446.md`).

You may also use `Accept: text/markdown` header for content negotiation.