diff --git a/api/src/Kurs.Platform.HttpApi.Host/Classroom/ClassroomHub.cs b/api/src/Kurs.Platform.HttpApi.Host/Classroom/ClassroomHub.cs
index d48e0973..72053081 100644
--- a/api/src/Kurs.Platform.HttpApi.Host/Classroom/ClassroomHub.cs
+++ b/api/src/Kurs.Platform.HttpApi.Host/Classroom/ClassroomHub.cs
@@ -423,7 +423,7 @@ public class ClassroomHub : Hub
                              .SendAsync("ForceDisconnect", "You have been removed from the class.");
 
                 // 🔑 Mesajın client’a ulaşmasını bekle
-                await Task.Delay(200);
+                await Task.Delay(300);
 
                 await Groups.RemoveFromGroupAsync(connectionId, sessionId.ToString());
             }
diff --git a/ui/src/services/classroom/signalr.ts b/ui/src/services/classroom/signalr.tsx
similarity index 94%
rename from ui/src/services/classroom/signalr.ts
rename to ui/src/services/classroom/signalr.tsx
index 8165f7e8..81fd3dc9 100644
--- a/ui/src/services/classroom/signalr.ts
+++ b/ui/src/services/classroom/signalr.tsx
@@ -1,3 +1,4 @@
+import { toast } from '@/components/ui'
 import {
   ClassroomAttendanceDto,
   ClassroomChatDto,
@@ -7,6 +8,7 @@ import {
 import { ROUTES_ENUM } from '@/routes/route.constant'
 import { store } from '@/store/store'
 import * as signalR from '@microsoft/signalr'
+import Notification from '@/components/ui/Notification'
 
 export class SignalRService {
   private connection!: signalR.HubConnection
@@ -101,6 +103,9 @@ export class SignalRService {
     this.connection.onreconnected(async () => {
       this.isConnected = true
       console.warn('🔄 SignalR reconnected')
+      toast.push(<Notification title="🔄 Bağlantı tekrar kuruldu" type="success" />, {
+        placement: 'top-center',
+      })
 
       // Eğer sınıftayken bağlantı koptuysa → tekrar join et
       if (this.currentSessionId && store.getState().auth.user) {
@@ -113,6 +118,13 @@ export class SignalRService {
       console.warn('🔥 onclose triggered, isKicked=', this.isKicked)
 
       if (this.isKicked) {
+        toast.push(
+          <Notification title="⚠️ Bağlantı koptu, yeniden bağlanılıyor..." type="warning" />,
+          {
+            placement: 'top-center',
+          },
+        )
+
         this.isConnected = false
         this.currentSessionId = undefined
         return // ❗ Kick durumunda kesinlikle LeaveClass çağırma
@@ -132,6 +144,9 @@ export class SignalRService {
 
     this.connection.on('Error', (message: string) => {
       console.error('Hub error:', message)
+      toast.push(<Notification title={`❌ Hata: ${message}`} type="danger" />, {
+        placement: 'top-center',
+      })
     })
 
     this.connection.onreconnecting((err) => {
@@ -145,6 +160,9 @@ export class SignalRService {
     this.connection.on('ForceDisconnect', async (message: string) => {
       console.warn('🚨 ForceDisconnect geldi:', message)
       this.isKicked = true
+      toast.push(<Notification title={`❌ Sınıftan çıkarıldınız: ${message}`} type="danger" />, {
+        placement: 'top-center',
+      })
 
       if (this.onForceCleanup) {
         console.warn('⚡ ForceCleanup callback çağrılıyor')
@@ -180,6 +198,9 @@ export class SignalRService {
 
       await Promise.race([startPromise, timeout])
       this.isConnected = true
+      toast.push(<Notification title="✅ Bağlantı kuruldu" type="success" />, {
+        placement: 'top-center',
+      })
     } catch (error) {
       console.error('Error starting SignalR connection:', error)
       alert(
diff --git a/ui/src/services/classroom/webrtc.ts b/ui/src/services/classroom/webrtc.tsx
similarity index 100%
rename from ui/src/services/classroom/webrtc.ts
rename to ui/src/services/classroom/webrtc.tsx
diff --git a/ui/src/views/classroom/RoomDetail.tsx b/ui/src/views/classroom/RoomDetail.tsx
index 581c126d..f44d9f73 100644
--- a/ui/src/views/classroom/RoomDetail.tsx
+++ b/ui/src/views/classroom/RoomDetail.tsx
@@ -55,6 +55,8 @@ import DocumentsPanel from '@/components/classroom/panels/DocumentsPanel'
 import LayoutPanel from '@/components/classroom/panels/LayoutPanel'
 import { ScreenSharePanel } from '@/components/classroom/panels/ScreenSharePanel'
 import { ParticipantGrid } from '@/components/classroom/ParticipantGrid'
+import toast from '@/components/ui/toast/toast'
+import Notification from '@/components/ui/Notification'
 
 type SidePanelType =
   | 'chat'
@@ -282,6 +284,9 @@ const RoomDetail: React.FC = () => {
           if (!isActive) return
 
           console.log(`Participant joined: ${name}, isTeacher: ${isTeacher}`)
+          toast.push(<Notification title={`${name} sınıfa katıldı`} type="success" />, {
+            placement: 'top-center',
+          })
 
           // State’e ekle
           setParticipants((prev) => {
@@ -360,6 +365,9 @@ const RoomDetail: React.FC = () => {
 
       signalRServiceRef.current.setParticipantLeaveHandler(({ userId, sessionId }) => {
         console.log(`Participant left: ${userId} from session ${sessionId}`)
+        toast.push(<Notification title={`Katılımcı ayrıldı: ${participants.find((p) => p.id === userId)?.name}`} type="warning" />, {
+          placement: 'top-center',
+        })
 
         // peer connection’ı kapat
         webRTCServiceRef.current?.closePeerConnection(userId)