Linux device disappeared from machine list

HI,

A integrated Tailscale on a linux device at the beginning of March. The device was working properly, could ping it from other nodes and was visible in my machine list. I didn’t use the device (disconnected and not powered) until I restarted it yesterday. I discovered the device was no more visible in the machine list, although I didn’t removed it from that list.

What could be the reason?

Can you share the node IP and domain on support@tailscale.com? we will dig into logs based on this info.