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

# Troubleshooting

> Fix the most common issues.

## Device disconnected

If NexRex stops receiving activities, the most common cause is a dropped device
connection. Reconnect from **Settings → Connections**.

## Missing or delayed insights

Insights and weekly summaries depend on synced activity data. Confirm your latest
runs have synced, and that heart-rate data is present.

## Still stuck?

<Card title="Contact support" icon="envelope" href="mailto:support@nexrex.ai">
  Email [support@nexrex.ai](mailto:support@nexrex.ai) with your account email and a description of the issue.
</Card>