diff --git a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsConnectionImpl.java b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsConnectionImpl.java
index 6f8250589..9be306e2a 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsConnectionImpl.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsConnectionImpl.java
@@ -6,10 +6,12 @@
  */
 package net.java.sip.communicator.impl.googlecontacts;
 
+import com.google.gdata.client.*;
 import com.google.gdata.client.contacts.*;
 import com.google.gdata.util.*;
 
 import net.java.sip.communicator.service.googlecontacts.*;
+import net.java.sip.communicator.util.*;
 
 /**
  * Google Contacts credentials to connect to the service.
@@ -19,6 +21,12 @@
 public class GoogleContactsConnectionImpl
     implements GoogleContactsConnection
 {
+    /**
+     * Logger.
+     */
+    private static final Logger logger =
+        Logger.getLogger(GoogleContactsConnectionImpl.class);
+
     /**
      * Login.
      */
@@ -106,9 +114,9 @@ public void setPassword(String password)
     /**
      * Initialize connection.
      *
-     * @return true if connection succeed, false if credentials is wrong
+     * @return connection status
      */
-    public boolean connect()
+    public ConnectionStatus connect()
     {
         try
         {
@@ -116,10 +124,18 @@ public boolean connect()
         }
         catch(AuthenticationException e)
         {
-            return false;
+            logger.info("Google contacts connection failure: " + e);
+            if(e instanceof GoogleService.InvalidCredentialsException)
+            {
+                return ConnectionStatus.ERROR_INVALID_CREDENTIALS;
+            }
+            else
+            {
+                return ConnectionStatus.ERROR_UNKNOWN;
+            }
         }
 
-        return true;
+        return ConnectionStatus.SUCCESS;
     }
 
     /**
diff --git a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsServiceImpl.java b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsServiceImpl.java
index 97371d0a2..be783c892 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsServiceImpl.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsServiceImpl.java
@@ -122,7 +122,9 @@ private void loadConfig()
 
             if(cnx != null)
             {
-                if(!cnx.connect())
+                if(cnx.connect() ==
+                    GoogleContactsConnection.ConnectionStatus.
+                        ERROR_INVALID_CREDENTIALS)
                 {
                     cnx.setEnabled(false);
                     AccountSettingsForm settings = new AccountSettingsForm();
diff --git a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsSourceService.java b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsSourceService.java
index fce0ff261..6d52148c6 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsSourceService.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/GoogleContactsSourceService.java
@@ -184,7 +184,9 @@ public GoogleContactsConnectionImpl getConnection()
                 {
                     cnx = new GoogleContactsConnectionImpl(login, password);
 
-                    if(cnx.connect() == false)
+                    if(cnx.connect() ==
+                        GoogleContactsConnection.ConnectionStatus.
+                            ERROR_INVALID_CREDENTIALS)
                     {
                         synchronized(this)
                         {
@@ -215,7 +217,9 @@ public GoogleContactsConnectionImpl getConnection()
                         }
                     }
                 }
-                else if(!cnx.connect())
+                else if(cnx.connect() ==
+                    GoogleContactsConnection.ConnectionStatus.
+                        ERROR_INVALID_CREDENTIALS)
                 {
                     synchronized(this)
                     {
diff --git a/src/net/java/sip/communicator/impl/googlecontacts/configform/AccountSettingsForm.java b/src/net/java/sip/communicator/impl/googlecontacts/configform/AccountSettingsForm.java
index 6db4845f5..f67b7c596 100644
--- a/src/net/java/sip/communicator/impl/googlecontacts/configform/AccountSettingsForm.java
+++ b/src/net/java/sip/communicator/impl/googlecontacts/configform/AccountSettingsForm.java
@@ -214,7 +214,8 @@ public void actionPerformed(ActionEvent e)
                 cnx.setPassword(password);
             }
 
-            if(!cnx.connect())
+            if(cnx.connect() == GoogleContactsConnection.ConnectionStatus.
+                    ERROR_INVALID_CREDENTIALS)
             {
                 JOptionPane.showMessageDialog(
                         this,
diff --git a/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsConnection.java b/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsConnection.java
index 6e3879f7a..85c54cb1d 100644
--- a/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsConnection.java
+++ b/src/net/java/sip/communicator/service/googlecontacts/GoogleContactsConnection.java
@@ -13,6 +13,28 @@
  */
 public interface GoogleContactsConnection
 {
+    /**
+     * Enumeration for connection status.
+     *
+     */
+    public enum ConnectionStatus
+    {
+        /**
+         * Connection has failed due to invalid credentials.
+         */
+        ERROR_INVALID_CREDENTIALS,
+
+        /**
+         * Connection has failed due to unknown reason.
+         */
+        ERROR_UNKNOWN,
+
+        /**
+         * Connection has succeed.
+         */
+        SUCCESS;
+    }
+
     /**
      * Get login.
      *
@@ -44,7 +66,7 @@ public interface GoogleContactsConnection
     /**
      * Initialize connection.
      *
-     * @return true if connection succeed, false if credentials is wrong
+     * @return connection status
      */
-    public boolean connect();
+    public ConnectionStatus connect();
 }