diff --git a/src/main/java/eu/siacs/conversations/entities/MucOptions.java b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
index 0ae8b279a17e6816c8b0843660d9579bcc996e74..097f4e3019d1e5d519c31191a1808501891e82f5 100644
--- a/src/main/java/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
@@ -116,6 +116,7 @@ public class MucOptions {
 
 	public enum Error {
 		NO_RESPONSE,
+		SEVRER_NOT_FOUND,
 		NONE,
 		NICK_IN_USE,
 		PASSWORD_REQUIRED,
diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index d0f2754cbafc3d0d4761cb7fd3aa6dcbde0cd7c4..337c0b4d2fffbed57a188400bd3f02796349f9f0 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -2028,8 +2028,12 @@ public class XmppConnectionService extends Service {
 
 				@Override
 				public void onFetchFailed(final Conversation conversation, Element error) {
-					join(conversation);
-					fetchConferenceConfiguration(conversation);
+					if (error != null && "remote-server-not-found".equals(error.getName())) {
+						conversation.getMucOptions().setError(MucOptions.Error.SEVRER_NOT_FOUND);
+					} else {
+						join(conversation);
+						fetchConferenceConfiguration(conversation);
+					}
 				}
 			});
 			updateConversationUi();
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index ad3ca4ea22f8e519582226b7a3d8076448de86bf..5fd654fa9309f801f6a1afec2d6cda83baf1eacf 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -865,6 +865,9 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 				case NO_RESPONSE:
 					showSnackbar(R.string.joining_conference, 0, null);
 					break;
+				case SEVRER_NOT_FOUND:
+					showSnackbar(R.string.remote_server_not_found,R.string.leave, leaveMuc);
+					break;
 				case PASSWORD_REQUIRED:
 					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 					break;
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 13098716586d7020d57e2e6adda9f1f7149169e5..dbc4ab378aaf1965d212346354ad4e8effb6c810 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -680,4 +680,5 @@
 	<string name="contact_asks_for_presence_subscription">Contact asks for presence subscription</string>
 	<string name="allow">Allow</string>
 	<string name="no_permission_to_access_x">No permission to access %s</string>
+	<string name="remote_server_not_found">Remote server not found</string>
 </resources>