diff --git a/source/ubl-settings-system.c b/source/ubl-settings-system.c
index cec5a4b..82b9049 100644
--- a/source/ubl-settings-system.c
+++ b/source/ubl-settings-system.c
@@ -525,7 +525,7 @@ void on_status_clicked(GtkWidget *self, connection_window *window){
     }
 }
 
-void on_find_domains_clicked(GtkWidget *self, connection_window *window){
+void on_find_domains_clicked(GtkWidget *self, main_window *window){
         yon_debug_output("%s\n",domains_seek_command);
         domain_info_window *dialog = yon_information_window_new();
         yon_terminal_integrated_start(dialog->ExecuteTerminal,domains_seek_command);
@@ -566,7 +566,7 @@ gboolean on_main_window_domain_status_update(connection_window *window){
 }
 
 // gboolean yon_update_thread(GtkWidget *self, GdkEvent *event, connection_window *window){
-    gboolean yon_update_thread(connection_window *window){
+    gboolean yon_update_thread(GtkWidget *self, connection_window *window){
     if (!update_thread_buzy){
         update_thread_buzy=1;
         pthread_t thread_id;
@@ -574,9 +574,6 @@ gboolean on_main_window_domain_status_update(connection_window *window){
     }
     return 1;
 }
-void remove_checking(GtkWidget *self, connection_window *window){
-    g_source_remove(window->timer_id);
-}
 
 connection_window *yon_connection_window_new(){
     GtkBuilder *builder = gtk_builder_new_from_resource(glade_connection_path);
@@ -585,7 +582,6 @@ connection_window *yon_connection_window_new(){
     window->AdressEntry = yon_gtk_builder_get_widget(builder,"AdressEntry");
     window->HeadLabel = yon_gtk_builder_get_widget(builder,"HeadLabel");
     window->StatusEntry = yon_gtk_builder_get_widget(builder,"StatusEntry");
-    window->FindEntry = yon_gtk_builder_get_widget(builder,"FindEntry");
     window->LoginEntry = yon_gtk_builder_get_widget(builder,"LoginEntry");
     window->PasswordEntry = yon_gtk_builder_get_widget(builder,"PasswordEntry");
     window->KerberosServerEntry = yon_gtk_builder_get_widget(builder,"KerberosServerEntry");
@@ -596,14 +592,11 @@ connection_window *yon_connection_window_new(){
     window->SettingsTree = yon_gtk_builder_get_widget(builder,"SettingsTree");
     window->SaveButton = yon_gtk_builder_get_widget(builder,"SaveButton");
     window->CancelButton = yon_gtk_builder_get_widget(builder,"CancelButton");
+    window->CheckButton = yon_gtk_builder_get_widget(builder,"CheckButton");
     window->list = GTK_LIST_STORE(gtk_builder_get_object(builder,"liststore1"));
     g_signal_connect(G_OBJECT(window->CancelButton),"clicked",G_CALLBACK(on_subwindow_close),NULL);
     g_signal_connect(G_OBJECT(window->StatusEntry),"clicked",G_CALLBACK(on_status_clicked),window);
-    g_signal_connect(G_OBJECT(window->FindEntry),"clicked",G_CALLBACK(on_find_domains_clicked),window);
-    g_signal_connect(G_OBJECT(window->Window),"destroy",G_CALLBACK(remove_checking),window);
-    // g_signal_connect(G_OBJECT(window->AdressEntry),"focus-out-event",G_CALLBACK(yon_update_thread),window);
-    // yon_update_thread(NULL,NULL,window);
-    window->timer_id = g_timeout_add(1000,(GSourceFunc)yon_update_thread,window);
+    g_signal_connect(G_OBJECT(window->CheckButton),"clicked",G_CALLBACK(yon_update_thread),window);
     return window;
 }
 
@@ -769,6 +762,7 @@ main_window *yon_main_window_complete(main_window *widgets){
     widgets->LocaleButton = yon_gtk_builder_get_widget(builder,"getLocalesButton");
     widgets->LocaleEntry = yon_gtk_builder_get_widget(builder,"localeEntry");
 
+    widgets->FindButton = yon_gtk_builder_get_widget(builder,"FindButton");
     widgets->DomainButton = yon_gtk_builder_get_widget(builder,"DomainButton");
     widgets->DomainEntry = yon_gtk_builder_get_widget(builder,"DomainEntry");
 
@@ -814,6 +808,8 @@ main_window *yon_main_window_complete(main_window *widgets){
 
     g_signal_connect(G_OBJECT(widgets->DomainEntry),"focus-out-event",G_CALLBACK(on_domain_address_save),NULL);
     
+    g_signal_connect(G_OBJECT(widgets->FindButton),"clicked",G_CALLBACK(on_find_domains_clicked),widgets);
+    
     gtk_widget_set_size_request(widgets->Window,800,440);
 
     // g_timeout_add(1000,(GSourceFunc)on_check_domain_connected,widgets);
diff --git a/source/ubl-settings-system.h b/source/ubl-settings-system.h
index 469223f..e7649b6 100644
--- a/source/ubl-settings-system.h
+++ b/source/ubl-settings-system.h
@@ -116,6 +116,7 @@ typedef struct {
 
     GtkWidget *DomainEntry;
     GtkWidget *DomainButton;
+    GtkWidget *FindButton;
 
     GtkListStore *fontlist;
     GtkListStore *languagelist;
@@ -172,7 +173,7 @@ typedef struct {
     GtkWidget *PasswordEntry;
     GtkWidget *DNSEntry;
     GtkWidget *StatusEntry;
-    GtkWidget *FindEntry;
+    GtkWidget *CheckButton;
     GtkWidget *KerberosServerEntry;
     GtkWidget *ClientCombo;
     GtkWidget *AdditionalCombo;
diff --git a/source/ubl-strings.h b/source/ubl-strings.h
index 295e529..86fe281 100644
--- a/source/ubl-strings.h
+++ b/source/ubl-strings.h
@@ -59,4 +59,5 @@
 #define DOMAIN_CONNECTED_LABEL _("Connected to domain")
 #define DOMAIN_DISCONNECTED_LABEL _("Disconnected from domain")
 
-#define LOADING_LABEL _("Loading...")
\ No newline at end of file
+#define LOADING_LABEL _("Loading...")
+#define CHECK_CONNECTION_LABEL _("Check connection")
\ No newline at end of file
diff --git a/ubl-settings-system-connection.glade b/ubl-settings-system-connection.glade
index 98ffd07..0598e11 100644
--- a/ubl-settings-system-connection.glade
+++ b/ubl-settings-system-connection.glade
@@ -8,11 +8,6 @@
     False
     com.ublinux.libublsettingsui-gtk3.important-symbolic
   
-  
   
diff --git a/ubl-settings-system.pot b/ubl-settings-system.pot
index 9cd9acc..02230a0 100644
--- a/ubl-settings-system.pot
+++ b/ubl-settings-system.pot
@@ -216,3 +216,7 @@ msgstr ""
 #: source/ubl-strings.h:62
 msgid "Loading..."
 msgstr ""
+
+#: source/ubl-strings.h:63
+msgid "Check connection"
+msgstr ""
diff --git a/ubl-settings-system_ru.po b/ubl-settings-system_ru.po
index 050dbc2..367c642 100644
--- a/ubl-settings-system_ru.po
+++ b/ubl-settings-system_ru.po
@@ -94,130 +94,134 @@ msgstr "По умолчанию"
 msgid "Cancel"
 msgstr "Отмена"
 
-#: source/ubl-strings.h:23
+#: source/ubl-strings.h:24
 msgid "Machine ID has been copied"
 msgstr "ID рабочей станции скопирован"
 
-#: source/ubl-strings.h:25
+#: source/ubl-strings.h:26
 msgid "ID field can't be empty!"
 msgstr "Поле ID не может быть пустым!"
 
-#: source/ubl-strings.h:27
+#: source/ubl-strings.h:28
 msgid "Insert data"
 msgstr "Введите данные"
 
-#: source/ubl-strings.h:29
+#: source/ubl-strings.h:30
 msgid "Accept"
 msgstr "Принять"
 
-#: source/ubl-strings.h:31
+#: source/ubl-strings.h:32
 msgid "Important field is empty"
 msgstr "Пустое важное поле"
 
-#: source/ubl-strings.h:33
+#: source/ubl-strings.h:34
 msgid "Connect"
 msgstr "Подключиться"
 
-#: source/ubl-strings.h:34
+#: source/ubl-strings.h:35
 msgid "Disconnect"
 msgstr "Отключиться"
 
-#: source/ubl-strings.h:35
+#: source/ubl-strings.h:36
 msgid "Domain address"
 msgstr "Адрес домена"
 
-#: source/ubl-strings.h:36
+#: source/ubl-strings.h:37
 msgid "Domain address:"
 msgstr "Адрес домена:"
 
-#: source/ubl-strings.h:37
+#: source/ubl-strings.h:38
 msgid "Domain administrator name:"
 msgstr "Имя администратора домена:"
 
-#: source/ubl-strings.h:38
+#: source/ubl-strings.h:39
 msgid "Domain administrator password:"
 msgstr "Пароль администратора домена:"
 
-#: source/ubl-strings.h:39
+#: source/ubl-strings.h:40
 msgid "Main"
 msgstr "Основные"
 
-#: source/ubl-strings.h:40
+#: source/ubl-strings.h:41
 msgid "Additional"
 msgstr "Дополнительные"
 
-#: source/ubl-strings.h:41
+#: source/ubl-strings.h:42
 msgid "Kerberos/AD domain server:"
 msgstr "Сервер домена Kerberos/AD"
 
-#: source/ubl-strings.h:42
+#: source/ubl-strings.h:43
 msgid "DNS server:"
 msgstr "DNS сервер:"
 
-#: source/ubl-strings.h:43
+#: source/ubl-strings.h:44
 msgid "Domain connection client"
 msgstr "Клиент подключения к домену"
 
-#: source/ubl-strings.h:44
+#: source/ubl-strings.h:45
 msgid "Sssd client"
 msgstr "Клиент sssd"
 
-#: source/ubl-strings.h:45
+#: source/ubl-strings.h:46
 msgid "Winbind client"
 msgstr "Клиент windbind"
 
-#: source/ubl-strings.h:46
+#: source/ubl-strings.h:47
 msgid "Samba client"
 msgstr "Клиент samba"
 
-#: source/ubl-strings.h:47
+#: source/ubl-strings.h:48
 msgid "Switch client off or automatically"
 msgstr "Выключить клиент или автоматически"
 
-#: source/ubl-strings.h:48
+#: source/ubl-strings.h:49
 msgid "Domain information"
 msgstr "Информация о домене"
 
-#: source/ubl-strings.h:49
+#: source/ubl-strings.h:50
 msgid "Domain connection"
 msgstr "Соединение домена"
 
-#: source/ubl-strings.h:50
+#: source/ubl-strings.h:51
 msgid "Check domain name"
 msgstr "Проверить домен"
 
-#: source/ubl-strings.h:51
+#: source/ubl-strings.h:52
 msgid "List all domains"
 msgstr "Показать все домены"
 
-#: source/ubl-strings.h:53
+#: source/ubl-strings.h:54
 msgid "Connecting to domain"
 msgstr "Подключение к домену"
 
-#: source/ubl-strings.h:54
+#: source/ubl-strings.h:55
 msgid "Disconnecting from domain"
 msgstr "Отключение от домена"
 
-#: source/ubl-strings.h:55
+#: source/ubl-strings.h:56
 msgid "Join"
 msgstr "Присоединиться"
 
-#: source/ubl-strings.h:56
+#: source/ubl-strings.h:57
 msgid "Leave"
 msgstr "Отсоединиться"
 
-#: source/ubl-strings.h:58
+#: source/ubl-strings.h:59
 msgid "Connected to domain"
 msgstr "Подключен к домену"
 
-#: source/ubl-strings.h:59
+#: source/ubl-strings.h:60
 msgid "Disconnected from domain"
 msgstr "Не подключен к домену"
 
-#: source/ubl-strings.h:61
+#: source/ubl-strings.h:62
 msgid "Loading..."
 msgstr "Загрузка..."
 
+#: source/ubl-strings.h:63
+msgid "Check connection"
+msgstr "Проверка доступности"
+
 msgid "Afrikaans, South Africa"
 msgstr "Африканский, Южная Африка"