# LLM Course Chapter 11 Exam: Connection error to api-inference.huggingface.co

> Source: <https://discuss.huggingface.co/t/llm-course-chapter-11-exam-connection-error-to-api-inference-huggingface-co/180639#post_1>
> Published: 2026-09-19 19:31:54+00:00

Hi everyone, I am experiencing an issue while trying to complete the Code Quiz in Chapter 11 of the LLM Course. When submitting, the automated check fails with a network resolution error. Here is the exact error I am receiving: (MaxRetryError(‘HTTPSConnectionPool(host=\‘[api-inference.huggingface.co](http://api-inference.huggingface.co)\’, port=443): Max retries exceeded with url: /models/Qwen/Qwen2.5-Coder-32B-Instruct/v1/chat/completions (Caused by NameResolutionError(“: Failed to resolve \‘[api-inference.huggingface.co](http://api-inference.huggingface.co)\’ ([Errno -5] No address associated with hostname)”))’)) It looks like the platform is currently unable to resolve the Hugging Face inference API hostname or the Qwen model endpoint is unavailable. Is this a known temporary issue, or is there something I can do to fix it? Thank you!