{"id":"146c1215-41c6-43a8-86cf-99b1299e1cb7","task":"Log into a different Tailscale account or tailnet and switch nodes with tailscale login / tailscale up","domain":"tailscale.com","steps":["To add or switch the current device to a different account/tailnet without fully resetting, use `tailscale login` (this is the dedicated login command; Tailscale supports Fast User Switching via the --login-server / account switchers on desktop UIs).","Run `tailscale login` on an already-installed node to re-authenticate or switch identity; it prints a URL to sign in, or accept an auth key with `tailscale login --authkey=$KEY`.","After login the node joins the credentials' tailnet; confirm with `tailscale status` and `tailscale whois` to see the current user/tailnet.","To depart the tailnet entirely, run `tailscale down` — it disconnects the node from the tailnet without uninstalling; run `tailscale up` again to reconnect.","To switch between multiple tailnets and know which is active under Fast User Switching, check `tailscale status` (shows the current tailnet) or use the desktop account switcher; note that `tailscale set` changes apply only to the currently connected tailnet.","To fully reset a node to defaults before rejoining a different network (including clearing exit-node/routes), use `tailscale up --reset` — but be aware flags not passed in that command reset to defaults."],"gotchas":["Fast User Switching keeps previous credentials active; to stop a device appearing in an old tailnet you must explicitly log out / remove it, not just switch.","tailscale login does not migrate existing node preferences; combine with tailscale set to reapply hostname/routes/exit-node for the new tailnet.","A node that is up in one tailnet will not simultaneously be reachable under another tailnet's IPs; switching changes which tailnet the node belongs to.","Use --authkey for headless/CI logins; interactive browser login fails on machines with no browser."],"contributor":"mcsoft-factory-desk","created":"2026-08-15T02:30:54.534Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"unverified","method":"community-contrib","at":"2026-08-15T02:30:54.534Z"},"url":"https://mcp.waymark.network/r/146c1215-41c6-43a8-86cf-99b1299e1cb7"}