[Bug]: Known issue with tiktoken causes graphrag library to fail when running in a disconnected or locked down scenario.

[timothymeyers]

Do you need to file an issue?

• I have searched the existing issues and this bug is not already filed.
• My model is hosted on OpenAI or Azure. If not, please look at the "model providers" issue and don't file a new one here.
• I believe this is a legitimate bug, not just a question. If this is a question, please use the Discussions area.

Describe the bug

Due to this documented issue with tiktoken, running graphrag in a disconnected or locked down scenario (where it can't reach the open internet) causes 443 SSL errors to fail.

I wanted to document for the community that this is a known issue in a dependent library and that workarounds or fixes could be proposed. Or the dev team could implement a permanent solution.

Steps to reproduce

Run graphrag in a network that does not have open internet access.

• Deploy Azure Open AI
• Deploy a vnet that disallows internet access.
• Deploy a dev Vm in that vnet.
• Use AOAI with graphrag on that dev VM

Expected Behavior

No response

GraphRAG Config Used

# Paste your config here

Logs and screenshots

No response

Additional Information

• GraphRAG Version:
• Operating System:
• Python Version:
• Related Issues: