pfSense

Found taiscale down today, status: unexpected state: NoState
Restarting the service didn't fix the issue.

To fix, I had to remove pfsense from tailnet, register a new key and login again with pfSense.
Then, disabled key expiry, changed the hostname to what was set previously, same for tailnet IP.
Saved, accepted routes in tailnet and done.

pfSense 2.7.2, all packages up to date, including system pachtes (all patches applied).
Found some users mentioning that this issue may be related to KEA, but I'm not using KEA and I can't see that there is a relation between tailscale and KEA.

Also found some posts in tailscale github page, mentioning that the --unattended fixes the issue.

Please, let me know if I can provide more details about this.