diff --git a/panel/src/components/PowerButton.tsx b/panel/src/components/PowerButton.tsx
new file mode 100644
index 0000000..b02fd74
--- /dev/null
+++ b/panel/src/components/PowerButton.tsx
@@ -0,0 +1,107 @@
+import { useState } from "react";
+import { Loader2, Play, Square } from "lucide-react";
+import { useTranslation } from "react-i18next";
+import { Button } from "@/components/ui/button";
+import { api, humanizeError } from "@/lib/api";
+import { cn } from "@/lib/utils";
+
+interface Props {
+  name: string;
+  /** A pod is up or on its way (Starting/Running/Stopping): offer Stop. */
+  live: boolean;
+  playersOnline?: number;
+  /** The operator cannot read the player count, so players may be online. */
+  playerCountUnknown?: boolean;
+  /** Called after the wake or stop was accepted, so the parent refetches. */
+  onChanged: () => void;
+  size?: "sm" | "default";
+  className?: string;
+}
+
+// PowerButton starts or stops one server. It is busy while the call runs (no
+// double send), shows why a call was refused (quota, cooldown, a phase that
+// moved on), and asks before a stop that would disconnect players: the count
+// is in the question, and an unreadable count asks too.
+export function PowerButton({
+  name,
+  live,
+  playersOnline,
+  playerCountUnknown,
+  onChanged,
+  size = "sm",
+  className,
+}: Props) {
+  const { t } = useTranslation("servers");
+  const [busy, setBusy] = useState(false);
+  const [confirming, setConfirming] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  async function run(kind: "wake" | "stop") {
+    if (busy) return;
+    setBusy(true);
+    setError(null);
+    try {
+      await (kind === "wake" ? api.wake(name) : api.stop(name));
+      setConfirming(false);
+      onChanged();
+    } catch (e) {
+      setError(humanizeError(e));
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  const players = playersOnline ?? 0;
+  const askFirst = players > 0 || playerCountUnknown === true;
+  const spinner = <Loader2 className="animate-spin" />;
+
+  let control;
+  if (!live) {
+    control = (
+      <Button size={size} onClick={() => void run("wake")} disabled={busy}>
+        {busy ? spinner : <Play />}
+        {busy ? t("waking") : t("wake")}
+      </Button>
+    );
+  } else if (confirming) {
+    control = (
+      <div role="alert" className="flex flex-wrap items-center justify-end gap-2">
+        <span className="text-xs font-medium text-foreground">
+          {players > 0
+            ? t("stop_confirm_players", { count: players })
+            : t("stop_confirm_unknown")}
+        </span>
+        <Button size={size} variant="ghost" onClick={() => setConfirming(false)} disabled={busy}>
+          {t("common:cancel")}
+        </Button>
+        <Button size={size} variant="destructive" onClick={() => void run("stop")} disabled={busy}>
+          {busy ? spinner : <Square />}
+          {busy ? t("stopping") : t("stop")}
+        </Button>
+      </div>
+    );
+  } else {
+    control = (
+      <Button
+        size={size}
+        variant="destructive"
+        onClick={() => (askFirst ? setConfirming(true) : void run("stop"))}
+        disabled={busy}
+      >
+        {busy ? spinner : <Square />}
+        {busy ? t("stopping") : t("stop")}
+      </Button>
+    );
+  }
+
+  return (
+    <div className={cn("flex flex-col items-end gap-1", className)}>
+      {control}
+      {error && (
+        <p role="alert" className="max-w-xs text-right text-xs text-destructive">
+          {error}
+        </p>
+      )}
+    </div>
+  );
+}
diff --git a/panel/src/components/ServerCard.tsx b/panel/src/components/ServerCard.tsx
index a5dfbd8..f6fbb0a 100644
--- a/panel/src/components/ServerCard.tsx
+++ b/panel/src/components/ServerCard.tsx
@@ -1,10 +1,11 @@
 import { useState } from "react";
 import { Link } from "react-router-dom";
-import { Play, Square, Hand, Users, ExternalLink, Terminal } from "lucide-react";
+import { Hand, Users, ExternalLink, Terminal } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { Card } from "@/components/ui/card";
 import { Button } from "@/components/ui/button";
 import { PhaseBadge } from "@/components/PhaseBadge";
+import { PowerButton } from "@/components/PowerButton";
 import { api, humanizeError } from "@/lib/api";
 import { hostFor, type RuntimeConfig } from "@/lib/config";
 import type { ServerInfo } from "@/lib/types";
@@ -18,11 +19,11 @@ interface Props {
 
 export function ServerCard({ server, cfg, onChanged }: Props) {
   const { t } = useTranslation("servers");
-  const [busy, setBusy] = useState<null | "wake" | "stop" | "claim">(null);
+  const [busy, setBusy] = useState<null | "claim">(null);
   const [error, setError] = useState<string | null>(null);
   const host = hostFor(server.subdomain, cfg);
 
-  async function act(kind: "wake" | "stop" | "claim", fn: () => Promise<unknown>) {
+  async function act(kind: "claim", fn: () => Promise<unknown>) {
     setBusy(kind);
     setError(null);
     try {
@@ -93,26 +94,15 @@ export function ServerCard({ server, cfg, onChanged }: Props) {
             <Hand /> {busy === "claim" ? t("claiming") : t("claim")}
           </Button>
         )}
-        {server.owned &&
-          (running || transitioning ? (
-            <Button
-              size="sm"
-              variant="destructive"
-              disabled={busy !== null}
-              onClick={() => act("stop", () => api.stop(server.name))}
-            >
-              <Square /> {busy === "stop" ? t("stopping") : t("stop")}
-            </Button>
-          ) : (
-            <Button
-              size="sm"
-              variant="default"
-              disabled={busy !== null}
-              onClick={() => act("wake", () => api.wake(server.name))}
-            >
-              <Play /> {busy === "wake" ? t("waking") : t("wake")}
-            </Button>
-          ))}
+        {server.owned && (
+          <PowerButton
+            name={server.name}
+            live={running || transitioning}
+            playersOnline={server.playersOnline}
+            playerCountUnknown={server.playerCountUnknown}
+            onChanged={onChanged}
+          />
+        )}
       </div>
     </Card>
   );
diff --git a/panel/src/components/States.tsx b/panel/src/components/States.tsx
index 52f45ef..30b96cc 100644
--- a/panel/src/components/States.tsx
+++ b/panel/src/components/States.tsx
@@ -1,7 +1,7 @@
 import { Loader2, AlertTriangle, Inbox, ShieldX, Construction, Moon, SearchX } from "lucide-react";
 import { Link } from "react-router-dom";
 import { useTranslation } from "react-i18next";
-import { Button } from "@/components/ui/button";
+import { PowerButton } from "@/components/PowerButton";
 import { humanizeError } from "@/lib/api";
 
 export function Loading({ label }: { label?: string }) {
@@ -136,11 +136,13 @@ export function NotYours({ title, body, linkTo = "/servers", linkLabel }: NotYou
 export interface NotRunningProps {
   title: string;
   body: string;
-  wakeLabel: string;
-  onWake: () => void;
+  /** The server to wake from here. */
+  serverName: string;
+  /** Called once the wake was accepted, so the page refetches its status. */
+  onWoken: () => void;
 }
 
-export function NotRunning({ title, body, wakeLabel, onWake }: NotRunningProps) {
+export function NotRunning({ title, body, serverName, onWoken }: NotRunningProps) {
   return (
     <div className="flex flex-col items-center justify-center gap-4 rounded-lg border border-dashed border-border bg-muted/20 py-16 text-center">
       <Moon className="h-8 w-8 text-muted-foreground/70" />
@@ -148,9 +150,7 @@ export function NotRunning({ title, body, wakeLabel, onWake }: NotRunningProps)
         <p className="font-medium">{title}</p>
         <p className="mx-auto mt-1 max-w-sm text-sm text-muted-foreground">{body}</p>
       </div>
-      <Button size="sm" onClick={onWake}>
-        {wakeLabel}
-      </Button>
+      <PowerButton name={serverName} live={false} onChanged={onWoken} className="items-center" />
     </div>
   );
 }
diff --git a/panel/src/i18n/resources/en-US/servers.json b/panel/src/i18n/resources/en-US/servers.json
index 65720c3..102d46f 100644
--- a/panel/src/i18n/resources/en-US/servers.json
+++ b/panel/src/i18n/resources/en-US/servers.json
@@ -178,5 +178,8 @@
   "idle_stop_never": "Never",
   "idle_stop_seconds": "{{count}} s",
   "idle_stop_minutes": "{{count}} min",
-  "idle_stop_hours": "{{count}} h"
+  "idle_stop_hours": "{{count}} h",
+  "stop_confirm_players_one": "1 player is online and will be disconnected. Stop anyway?",
+  "stop_confirm_players_other": "{{count}} players are online and will be disconnected. Stop anyway?",
+  "stop_confirm_unknown": "The player count can't be read, so players may be online. Stop anyway?"
 }
diff --git a/panel/src/i18n/resources/zh-CN/servers.json b/panel/src/i18n/resources/zh-CN/servers.json
index 83f75d6..9d48c9c 100644
--- a/panel/src/i18n/resources/zh-CN/servers.json
+++ b/panel/src/i18n/resources/zh-CN/servers.json
@@ -178,5 +178,7 @@
   "idle_stop_never": "从不",
   "idle_stop_seconds": "{{count}} 秒",
   "idle_stop_minutes": "{{count}} 分钟",
-  "idle_stop_hours": "{{count}} 小时"
+  "idle_stop_hours": "{{count}} 小时",
+  "stop_confirm_players": "{{count}} 名玩家在线，停服会断开他们。确定停止？",
+  "stop_confirm_unknown": "读不到在线人数，可能有玩家在线。确定停止？"
 }
diff --git a/panel/src/pages/ServerConsole.tsx b/panel/src/pages/ServerConsole.tsx
index 9fb7bd0..349f90d 100644
--- a/panel/src/pages/ServerConsole.tsx
+++ b/panel/src/pages/ServerConsole.tsx
@@ -3,7 +3,6 @@ import { Link, useParams } from "react-router-dom";
 import { Terminal, Moon, Shield, ShieldAlert, HelpCircle, Loader2, Users, Archive, FolderOpen, ChevronRight, type LucideIcon } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { Card, CardContent } from "@/components/ui/card";
-import { Button } from "@/components/ui/button";
 import { BackLink } from "@/components/BackLink";
 import { PhaseBadge } from "@/components/PhaseBadge";
 import { PageHeader } from "@/components/PageHeader";
@@ -16,6 +15,7 @@ import { canManage } from "@/lib/ownership";
 import { hostFor } from "@/lib/config";
 import type { Phase, AutostartPolicy } from "@/lib/types";
 import { EditServerDialog } from "@/components/EditServerDialog";
+import { PowerButton } from "@/components/PowerButton";
 
 // notStreamingCopy explains why there is no live feed for a phase that has no
 // streamable pod. The read path only has something to relay once a pod is up, so
@@ -226,19 +226,13 @@ export function ServerConsole() {
             actions={
               <div className="flex items-center gap-2">
                 <PhaseBadge phase={data.phase} />
-                {streamable ? (
-                  <Button
-                    variant="destructive"
-                    size="sm"
-                    onClick={() => api.stop(name).then(reload)}
-                  >
-                    {t("stop")}
-                  </Button>
-                ) : (
-                  <Button variant="default" size="sm" onClick={() => api.wake(name).then(reload)}>
-                    {t("wake")}
-                  </Button>
-                )}
+                <PowerButton
+                  name={name}
+                  live={streamable || data.phase === "Stopping"}
+                  playersOnline={data.playersOnline}
+                  playerCountUnknown={data.playerCountUnknown}
+                  onChanged={reload}
+                />
               </div>
             }
             className="mb-6"
diff --git a/panel/src/pages/ServerLuckPerms.tsx b/panel/src/pages/ServerLuckPerms.tsx
index 58eb828..76a3db1 100644
--- a/panel/src/pages/ServerLuckPerms.tsx
+++ b/panel/src/pages/ServerLuckPerms.tsx
@@ -325,7 +325,7 @@ export function ServerLuckPerms() {
       ) : !owned ? (
         <NotYours title={t("players_not_yours_title")} body={t("players_not_yours_body")} />
       ) : phase !== "Running" ? (
-        <NotRunning title={t("players_not_running_title")} body={t("players_not_running_body")} wakeLabel={t("wake")} onWake={() => api.wake(name).then(reload)} />
+        <NotRunning title={t("players_not_running_title")} body={t("players_not_running_body")} serverName={name} onWoken={reload} />
       ) : (
         <div className="grid grid-cols-1 lg:grid-cols-4 gap-6 items-start">
           {/* Left Directory Sidebar: Single card for Search + Online Players */}
diff --git a/panel/src/pages/ServerPlayers.tsx b/panel/src/pages/ServerPlayers.tsx
index dff09d7..c3093aa 100644
--- a/panel/src/pages/ServerPlayers.tsx
+++ b/panel/src/pages/ServerPlayers.tsx
@@ -84,7 +84,7 @@ export function ServerPlayers() {
       ) : !owned ? (
         <NotYours title={t("players_not_yours_title")} body={t("players_not_yours_body")} />
       ) : phase !== "Running" ? (
-        <NotRunning title={t("players_not_running_title")} body={t("players_not_running_body")} wakeLabel={t("wake")} onWake={() => api.wake(name).then(reload)} />
+        <NotRunning title={t("players_not_running_title")} body={t("players_not_running_body")} serverName={name} onWoken={reload} />
       ) : (
         <div className="space-y-4">
           {/* Ordered as a who-may-be-here gradient: who is on right now → who may
diff --git a/panel/src/pages/servers/ServersPage.tsx b/panel/src/pages/servers/ServersPage.tsx
index 8b3b59f..1db740d 100644
--- a/panel/src/pages/servers/ServersPage.tsx
+++ b/panel/src/pages/servers/ServersPage.tsx
@@ -3,7 +3,6 @@ import { Link } from "react-router-dom";
 import {
   Network,
   Play,
-  Square,
   Terminal,
   ExternalLink,
   RefreshCw,
@@ -33,6 +32,7 @@ import {
   SelectItem,
 } from "@/components/ui/select";
 import { PhaseBadge, PHASE_KEY, PHASE_COLOR } from "@/components/PhaseBadge";
+import { PowerButton } from "@/components/PowerButton";
 import { Loading, ErrorState, EmptyState } from "@/components/States";
 import { Pagination } from "@/components/Pagination";
 import { CreateServerDialog } from "@/components/CreateServerDialog";
@@ -78,6 +78,7 @@ interface UnifiedServer {
   autostartPolicy?: AutostartPolicy;
   playersOnline: number;
   playersMax: number;
+  playerCountUnknown?: boolean;
   owner?: string;
   endpointAddress?: string | null;
   claimable?: boolean;
@@ -139,6 +140,7 @@ export function ServersPage() {
         autostartPolicy: s.autostartPolicy,
         playersOnline: s.playersOnline ?? 0,
         playersMax: s.playersMax ?? 0,
+        playerCountUnknown: s.playerCountUnknown,
         owner: s.owned ? t("servers:owned_filter_mine") || "me" : undefined,
         claimable: s.claimable,
         owned: s.owned,
@@ -402,11 +404,11 @@ function ServerRow({
 }) {
   const { t } = useTranslation("ops");
   const { t: ts } = useTranslation("servers");
-  const [busy, setBusy] = useState<null | "wake" | "stop" | "claim">(null);
+  const [busy, setBusy] = useState<null | "claim">(null);
   const [confirmOpen, setConfirmOpen] = useState(false);
   const [error, setError] = useState<string | null>(null);
 
-  async function act(kind: "wake" | "stop" | "claim", fn: () => Promise<unknown>) {
+  async function act(kind: "claim", fn: () => Promise<unknown>) {
     setBusy(kind);
     setError(null);
     try {
@@ -538,25 +540,13 @@ function ServerRow({
               </>
             ) : (
               <>
-                {live ? (
-                  <Button
-                    size="sm"
-                    variant="destructive"
-                    disabled={busy !== null}
-                    onClick={() => act("stop", () => api.stop(server.name))}
-                  >
-                    <Square /> {busy === "stop" ? ts("stopping") : ts("stop")}
-                  </Button>
-                ) : (
-                  <Button
-                    size="sm"
-                    variant="default"
-                    disabled={busy !== null}
-                    onClick={() => act("wake", () => api.wake(server.name))}
-                  >
-                    <Play /> {busy === "wake" ? ts("waking") : ts("wake")}
-                  </Button>
-                )}
+                <PowerButton
+                  name={server.name}
+                  live={live}
+                  playersOnline={server.playersOnline}
+                  playerCountUnknown={server.playerCountUnknown}
+                  onChanged={onChanged}
+                />
                 {(server.owned || isAdmin) && (
                   <Link to={`/servers/${server.name}`}>
                     <Button size="sm" variant="outline">