diff --git a/src/app/pages/home/home-page.component.html b/src/app/pages/home/home-page.component.html
index 8bf12ae..0fc5e54 100644
--- a/src/app/pages/home/home-page.component.html
+++ b/src/app/pages/home/home-page.component.html
@@ -1,5 +1,5 @@
 <div *ngIf="showIntro" class="home-start">
-    <div class="start-button" (click)="discoverHost($event)">
+    <div class="start-button" (click)="startDiscovery($event)">
         <svg version="1.1" viewBox="0 0 200 210">
             <path d="M8.3,193.5c0.1,2.4,0.8,4.9,2.1,7.1c4.5,7.7,14.3,10.4,22.1,5.9l152.1-87.8c2-1.3,3.8-3.1,5.1-5.4
         c4.5-7.7,1.8-17.6-5.9-22.1L31.6,3.4c-2.2-1.1-4.6-1.7-7.2-1.7c-8.9,0-16.2,7.2-16.2,16.2V193.5z" />
diff --git a/src/app/pages/home/home-page.component.ts b/src/app/pages/home/home-page.component.ts
index 7ca579b..e18c1e6 100644
--- a/src/app/pages/home/home-page.component.ts
+++ b/src/app/pages/home/home-page.component.ts
@@ -4,8 +4,7 @@ import { Component, OnInit, OnDestroy, ViewChild, ElementRef, ChangeDetectorRef
 
 import { ProbeService, requesterID } from '../../../commons/service/probe.service';
 
-import { Zone, Host, Port, Service } from '@overflow/model/discovery';
-import { toMetaIPType, MetaIPTypeEnum } from '@overflow/model/meta';
+import { Zone, Host, Port, Service, DiscoverHost } from '@overflow/model/discovery';
 import { RPCSubscriber } from '@overflow/commons/ui/decorator/RPCSubscriber';
 import { DiscoveryConfigService } from '../../../commons/service/discovery-config.service';
 
@@ -17,8 +16,12 @@ const vis = require('vis');
   styleUrls: ['./home-page.component.scss'],
 })
 export class HomePageComponent implements OnInit, OnDestroy {
+
   private discoveryTargetRef: ElementRef;
 
+  zone: Zone;
+  discoverHost: DiscoverHost;
+
   @ViewChild('discoveryTarget') set discoveryTarget(content: ElementRef) {
     this.discoveryTargetRef = content;
   }
@@ -44,7 +47,18 @@ export class HomePageComponent implements OnInit, OnDestroy {
 
   ngOnInit() {
     // this.probeService.subscribeNotification(this);
-    // this.discoverHost("");
+    // this.startDiscovery("");
+    this.discoveryConfigService.zone.subscribe(res => {
+      this.zone = res as Zone;
+    });
+    this.discoveryConfigService.discoverHost.subscribe(res => {
+      this.discoverHost = res as DiscoverHost;
+    });
+    this.discoveryConfigService.started.subscribe(res => {
+      if (res) {
+        this.startDiscovery();
+      }
+    });
   }
 
   ngOnDestroy(): void {
@@ -58,7 +72,7 @@ export class HomePageComponent implements OnInit, OnDestroy {
     }, 3000);
   }
 
-  discoverHost() {
+  startDiscovery() {
     this.showIntro = false;
     this.changeDetector.detectChanges();
 
@@ -97,12 +111,12 @@ export class HomePageComponent implements OnInit, OnDestroy {
       }
     });
 
-    this.probeService.send(
-      'DiscoveryService.DiscoverHost',
-      requesterID,
-      this.discoveryConfigService.getZone(),
-      this.discoveryConfigService.getDiscoverHost()
-    );
+    // this.probeService.send(
+    //   'DiscoveryService.DiscoverHost',
+    //   requesterID,
+    //   this.discoveryConfigService.getZone(),
+    //   this.discoveryConfigService.getDiscoverHost()
+    // );
   }
 
   /**
diff --git a/src/app/pages/home/home-page.module.ts b/src/app/pages/home/home-page.module.ts
index a6677a4..e13afff 100644
--- a/src/app/pages/home/home-page.module.ts
+++ b/src/app/pages/home/home-page.module.ts
@@ -6,7 +6,6 @@ import { CommonsUIModule } from '@overflow/commons/ui/commons-ui.module';
 import { HomePageComponent } from './home-page.component';
 import { HomePageRoutingModule } from './home-page-routing.module';
 import { CommonsModule } from '../../../commons/commons.module';
-import { DiscoveryConfigService } from '../../../commons/service/discovery-config.service';
 
 @NgModule({
   imports: [
@@ -18,8 +17,5 @@ import { DiscoveryConfigService } from '../../../commons/service/discovery-confi
   entryComponents: [
   ],
   declarations: [HomePageComponent],
-  providers: [
-    DiscoveryConfigService
-  ]
 })
 export class HomePageModule { }
diff --git a/src/app/pages/pages.component.ts b/src/app/pages/pages.component.ts
index fd2dbee..9760b8a 100644
--- a/src/app/pages/pages.component.ts
+++ b/src/app/pages/pages.component.ts
@@ -363,10 +363,7 @@ export class PagesComponent implements AfterViewInit, OnDestroy, OnInit {
   }
 
   onStart() {
-    this.probeService.send('DiscoveryService.DiscoverHost',
-      requesterID,
-      this.discoveryConfigService.getZone(),
-      this.discoveryConfigService.getDiscoverHost());
+    this.discoveryConfigService.setStarted(true);
   }
 
 }
diff --git a/src/app/pages/pages.module.ts b/src/app/pages/pages.module.ts
index da519f2..eb1d66a 100644
--- a/src/app/pages/pages.module.ts
+++ b/src/app/pages/pages.module.ts
@@ -8,7 +8,6 @@ import { CommonsModule } from '../../commons/commons.module';
 import { PagesComponent } from './pages.component';
 import { PagesRoutingModule } from './pages-routing.module';
 import { DiscoveryConfigService } from '../../commons/service/discovery-config.service';
-import { ProbeService } from '../../commons/service/probe.service';
 
 @NgModule({
   imports: [
diff --git a/src/commons/service/discovery-config.service.ts b/src/commons/service/discovery-config.service.ts
index 57678bf..cf8a673 100644
--- a/src/commons/service/discovery-config.service.ts
+++ b/src/commons/service/discovery-config.service.ts
@@ -1,27 +1,37 @@
 import { Injectable } from "@angular/core";
 import { DiscoverHost, Zone } from "@overflow/model/discovery";
+import { Observable, BehaviorSubject } from "rxjs";
 
 @Injectable({
   providedIn: 'root'
 })
 export class DiscoveryConfigService {
 
-  discoverHost: DiscoverHost;
-  zone: Zone;
+  private discoverHostSubject = new BehaviorSubject<DiscoverHost>(null);
+  private zoneSubject = new BehaviorSubject<Zone>(null);
+  private startSubject = new BehaviorSubject<boolean>(false);
 
-  public setZone(zone: Zone): void {
-    this.zone = zone;
+  discoverHost: Observable<DiscoverHost>;
+  zone: Observable<Zone>;
+  started: Observable<boolean>;
+
+
+  constructor() {
+    this.discoverHost = this.discoverHostSubject.asObservable();
+    this.zone = this.zoneSubject.asObservable();
+    this.started = this.startSubject.asObservable();
   }
 
-  public getZone(): Zone {
-    return this.zone;
+  public setZone(zone: Zone): void {
+    this.zoneSubject.next(zone);
   }
 
   public setDiscoverHost(discoverHost: DiscoverHost): void {
-    this.discoverHost = discoverHost;
+    this.discoverHostSubject.next(discoverHost);
   }
 
-  public getDiscoverHost(): DiscoverHost {
-    return this.discoverHost;
+  public setStarted(isStarted: boolean): void {
+    this.startSubject.next(isStarted);
   }
+
 }
\ No newline at end of file