diff --git a/android/app/src/main/java/com/ts3client/android/ServerController.kt b/android/app/src/main/java/com/ts3client/android/ServerController.kt
index edbc870..cc83b2e 100644
--- a/android/app/src/main/java/com/ts3client/android/ServerController.kt
+++ b/android/app/src/main/java/com/ts3client/android/ServerController.kt
@@ -117,11 +117,10 @@ class ServerController internal constructor(
         session.disconnect()
     }
 
-    /** Leaves the server before returning, for when the app goes away with the connection. */
-    internal fun leave() {
+    /** Before the app goes away with the connection, which [SessionController.leave] then ends. */
+    internal fun leaving() {
         left = true
         network.leaving()
-        session.shutdown()
     }
 
     internal fun dispose() {
diff --git a/android/app/src/main/java/com/ts3client/android/SessionController.kt b/android/app/src/main/java/com/ts3client/android/SessionController.kt
index 6730dd7..a15dedb 100644
--- a/android/app/src/main/java/com/ts3client/android/SessionController.kt
+++ b/android/app/src/main/java/com/ts3client/android/SessionController.kt
@@ -21,6 +21,7 @@ import com.ts3client.myts.MyTeamSpeak
 import com.ts3client.net.HostButton
 import com.ts3client.myts.MyTeamSpeakLogin
 import com.ts3client.session.SelfState
+import com.ts3client.session.ServerSession
 import com.ts3client.session.Sessions
 import com.ts3client.sound.SoundNotifier
 import com.ts3client.sound.SoundPack
@@ -199,7 +200,9 @@ class SessionController(private val context: Context) {
 
     /** Leaves every server before returning, for when the app goes away with the connections. */
     fun leave() {
-        _servers.value.forEach(ServerController::leave)
+        val servers = _servers.value
+        servers.forEach(ServerController::leaving)
+        ServerSession.shutdownAll(servers.map { it.session })
         contactStore.flush()
     }
 
diff --git a/ts3-client/core/src/main/java/com/ts3client/session/ServerSession.java b/ts3-client/core/src/main/java/com/ts3client/session/ServerSession.java
index 7643a76..9fcc174 100644
--- a/ts3-client/core/src/main/java/com/ts3client/session/ServerSession.java
+++ b/ts3-client/core/src/main/java/com/ts3client/session/ServerSession.java
@@ -208,6 +208,27 @@ public final class ServerSession {
         if (isBusy()) conn.disconnectBlocking("Leaving");
     }
 
+    /**
+     * {@link #shutdown()}s every session at once, so leaving takes as long as the slowest
+     * server rather than all of them together: a frontend may have little time left.
+     */
+    public static void shutdownAll(List<ServerSession> sessions) {
+        List<Thread> leaving = new ArrayList<>();
+        for (ServerSession s : sessions) {
+            Thread t = new Thread(s::shutdown, "ts3-leave");
+            t.start();
+            leaving.add(t);
+        }
+        for (Thread t : leaving) {
+            try {
+                t.join();
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                return;
+            }
+        }
+    }
+
     /** Releases the background resources of a session that is being thrown away. */
     public void dispose() {
         conn.getIcons().shutdown();
diff --git a/ts3-client/core/src/main/java/com/ts3client/session/Sessions.java b/ts3-client/core/src/main/java/com/ts3client/session/Sessions.java
index 745c7ef..ddbd700 100644
--- a/ts3-client/core/src/main/java/com/ts3client/session/Sessions.java
+++ b/ts3-client/core/src/main/java/com/ts3client/session/Sessions.java
@@ -153,7 +153,7 @@ public final class Sessions {
 
     /** Leaves every server, waiting until each has been told. */
     public void shutdown() {
-        for (ServerSession s : new ArrayList<>(sessions)) s.shutdown();
+        ServerSession.shutdownAll(new ArrayList<>(sessions));
         handover.shutdown();
     }
 }