I don’t think MTU mismatch or CRC error is the root cause. So far, I haven’t modified any proxmox settings. I’ve updated the post. ❤️

I exposed the some applications using Pangolin and some using Cloudflare Tunnel. When I shutdown a VM, I can access applications in other vm using local IP (192.168.x.x) from my home network. But they seem to lose outside internet connection. Is this what what you wanted to know?

WTF!

A mini PC for my homelab.