YueGuobin f9d1ccc701
docs: add troubleshooting for controller hostname unreachable
Add documentation for the "No common subnet" error when the
controller's hostname in /etc/hosts resolves to an unreachable
or stale IP address.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-25 15:44:20 +08:00
..