diff --git a/mobile/index.html b/mobile/index.html
index 5bcf3fa..8d70bde 100644
--- a/mobile/index.html
+++ b/mobile/index.html
@@ -379,8 +379,13 @@ function signOut(expired) {
 }
 $("b-out1").onclick = () => signOut();
 
+// The list waits for a brain that is restarting (or a computer that woke up): it looks again
+// every few seconds and goes in by itself; it used to sit on 「離線」 until tapped.
+let hostRetry = null;
 async function pickHost() {
-  const me = await api("relay/me");
+  clearTimeout(hostRetry);
+  let me;
+  try { me = await api("relay/me"); } catch (e) { toast(e.message); if (S.token) hostRetry = setTimeout(pickHost, 3000); return; }
   const all = me.hosts || [];
   // A computer that shows another one's bots (大腦) leads to that brain.
   const byId = Object.fromEntries(all.map((h) => [h.id, h]));
@@ -399,10 +404,14 @@ async function pickHost() {
   }
   if (live.length === 1) { S.host = live[0].id; localStorage.setItem("anybot.host", S.host); return start(); }
   const note = (h) => { const n = sharers(h.id); return n.length ? " · " + esc(n.join("、")) + " 也用這個大腦" : ""; };
-  $("hosts").innerHTML = hosts.length ? hosts.map((h) => `<div class="row" data-h="${esc(h.id)}"><div class="av" style="background:${h.online ? "var(--ok)" : "#888"}">${esc((h.name || "?")[0])}</div><div class="mid"><div class="name">${esc(h.name)}</div><div class="last">${h.online ? "在線上" : "離線（" + esc(h.last_seen_text || "很久沒連線") + "）"}${note(h)}</div></div></div>`).join("")
-    : `<div class="empty">這個帳號還沒有連上任何 AnyBot。<br>在電腦上打開 AnyBot › 設定 › 手機與帳號，登入同一個帳號。</div>`;
-  document.querySelectorAll("#hosts .row").forEach((r) => r.onclick = () => { S.host = r.dataset.h; localStorage.setItem("anybot.host", S.host); start(); });
+  const wanted = (S.host && byId[target(S.host)]) || (all.find((h) => sharers(h.id).length)) || hosts[0];
+  const waiting = hosts.length && !live.length && wanted
+    ? `<div class="empty">「${esc(wanted.name)}」暫時沒有連線（可能正在重新啟動，或那台電腦睡著了）。<br>連上後會自動進入，不用重新整理。</div>` : "";
+  $("hosts").innerHTML = waiting + (hosts.length ? hosts.map((h) => `<div class="row" data-h="${esc(h.id)}"><div class="av" style="background:${h.online ? "var(--ok)" : "#888"}">${esc((h.name || "?")[0])}</div><div class="mid"><div class="name">${esc(h.name)}</div><div class="last">${h.online ? "在線上" : "離線（" + esc(h.last_seen_text || "很久沒連線") + "）"}${note(h)}</div></div></div>`).join("")
+    : `<div class="empty">這個帳號還沒有連上任何 AnyBot。<br>在電腦上打開 AnyBot › 設定 › 手機與帳號，登入同一個帳號。</div>`);
+  document.querySelectorAll("#hosts .row").forEach((r) => r.onclick = () => { clearTimeout(hostRetry); S.host = r.dataset.h; localStorage.setItem("anybot.host", S.host); start(); });
   show("hosts");
+  if (S.token && !live.length) hostRetry = setTimeout(pickHost, 3000);
 }
 
 // ---------- live state ----------