Health messages indicate client connectivity or configuration issues

The tailscaled_health_messages gauge shows non-zero health messages, with type labels such as 'warning'. This indicates the Tailscale client has detected connectivity, configuration, or operational issues.

Run 'tailscale status' to collect detailed health message information. Monitor tailscaled_health_messages metric and alert when count increases. Investigate warnings related to connectivity, certificate expiration, or subnet router configuration.