Debugging an odd case where Ubuntu in Proxmox could ping a GNS3 router but not SSH to it — while Windows worked fine.

A real-world tale of Monday morning troubleshooting, rising tickets, and a reminder that the simplest explanation is often hidden behind a trusted system update.

Exploring the parallels between a classic parable and modern network troubleshooting, this post delves into the importance of overcoming biases and employing structured approaches to effectively manage network issues.