Connection failed
Error
Connection error.
500 Response timeoutWhy this happens
The LLM endpoint is unreachable or didn't respond in time.
Fix
For cloud providers
- Check your internet connection
- Check the provider's status page:
- OpenAI: status.openai.com
- Anthropic: status.anthropic.com
- If behind a corporate proxy/VPN, ensure the provider's API domain isn't blocked
- Retry — transient network failures are common
For local models (Ollama, vLLM, LM Studio)
- Verify the server is running:
# Ollama ollama serve # Check if responding curl http://localhost:11434/api/tags - Check the correct port in settings matches what the server is listening on
- If using Docker: ensure port mapping is correct
- Check GPU memory — if exhausted, the server may hang:
nvidia-smi
For Free Models
If free.neuralinverse.com is timing out:
- Retry in a few seconds (server may be under load)
- Switch to a different free model (some may be less loaded)
- Check Neural Inverse status for outage announcements
Was this page helpful?
Last edited