The USB adapter resolved the issue! I didn’t disable offloading as it will increase CPU usage.

That’s a great idea! Thank you so much. I will get a portable SSD or HDD as soon as I can.

Apparently, yes!

Robolox is overrated.

I was thinking about getting a USB Ethernet Adapter. Will it help me to resolve the issues easily?

You guys are right!

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.