Hi @nepiskopos ,

I think that your issues all share a single root cause: the restricted egress network policy introduced when you moved behind the private network.

Serverless forecasting requires outbound access to resolve the workspace URL for MLflow metric logging, and to pull packages from PyPI during the Tuning stage. Both are now blocked. Per Databricks docs, if the workspace has serverless egress control enabled, pypi.org must be explicitly added to the Allowed Domains list.

To fix it: In Account Console → Security → Networking → Context-based ingress & egress control, add pypi.org and files.pythonhosted.org to the egress allowlist.