DERP_VERIFY_CLIENTS issue

[ppllpig]

once set DERP_VERIFY_CLIENTS=true,works well in some hours,after that,show a lot of error:

rejected: failed to query local tailscaled status: Failed to connect to local Tailscale daemon for /localapi/v0/status; not running? Error: dial unix /var/run/tailscale/tailscaled.sock: connect: connection refused

tested in three new install machines