diff --git a/src/main/java/eu/siacs/conversations/entities/MucOptions.java b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
index be9d790d1..3567c14f4 100644
--- a/src/main/java/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
@@ -91,22 +91,26 @@ public class MucOptions {
 		}
 	}
 
-	public static final int ERROR_NO_ERROR = 0;
-	public static final int ERROR_NICK_IN_USE = 1;
-	public static final int ERROR_UNKNOWN = 2;
-	public static final int ERROR_PASSWORD_REQUIRED = 3;
-	public static final int ERROR_BANNED = 4;
-	public static final int ERROR_MEMBERS_ONLY = 5;
-	public static final int ERROR_NO_RESPONSE = 6;
-
-	public static final int KICKED_FROM_ROOM = 9;
+	public enum Error {
+		NO_RESPONSE,
+		NONE,
+		NICK_IN_USE,
+		PASSWORD_REQUIRED,
+		BANNED,
+		MEMBERS_ONLY,
+		KICKED,
+		SHUTDOWN,
+		UNKNOWN
+	}
 
 	public static final String STATUS_CODE_ROOM_CONFIG_CHANGED = "104";
 	public static final String STATUS_CODE_SELF_PRESENCE = "110";
 	public static final String STATUS_CODE_BANNED = "301";
 	public static final String STATUS_CODE_CHANGED_NICK = "303";
 	public static final String STATUS_CODE_KICKED = "307";
-	public static final String STATUS_CODE_LOST_MEMBERSHIP = "321";
+	public static final String STATUS_CODE_AFFILIATION_CHANGE = "321";
+	public static final String STATUS_CODE_LOST_MEMBERSHIP = "322";
+	public static final String STATUS_CODE_SHUTDOWN = "332";
 
 	private interface OnEventListener {
 		void onSuccess();
@@ -245,7 +249,7 @@ public class MucOptions {
 	private Data form = new Data();
 	private Conversation conversation;
 	private boolean isOnline = false;
-	private int error = ERROR_NO_RESPONSE;
+	private Error error = Error.NONE;
 	public OnRenameListener onRenameListener = null;
 	private User self;
 	private String subject = null;
@@ -324,8 +328,8 @@ public class MucOptions {
 		return findUser(name) != null;
 	}
 
-	public void setError(int error) {
-		this.isOnline = isOnline && error == ERROR_NO_ERROR;
+	public void setError(Error error) {
+		this.isOnline = isOnline && error == Error.NONE;
 		this.error = error;
 	}
 
@@ -379,7 +383,7 @@ public class MucOptions {
 		return this.isOnline;
 	}
 
-	public int getError() {
+	public Error getError() {
 		return this.error;
 	}
 
@@ -389,7 +393,7 @@ public class MucOptions {
 
 	public void setOffline() {
 		this.users.clear();
-		this.error = ERROR_NO_RESPONSE;
+		this.error = Error.NO_RESPONSE;
 		this.isOnline = false;
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
index dc02eda8f..63d28c97b 100644
--- a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
@@ -63,7 +63,7 @@ public class PresenceParser extends AbstractParser implements
 				if (x != null) {
 					Element item = x.findChild("item");
 					if (item != null && !from.isBareJid()) {
-						mucOptions.setError(MucOptions.ERROR_NO_ERROR);
+						mucOptions.setError(MucOptions.Error.NONE);
 						MucOptions.User user = new MucOptions.User(mucOptions,from);
 						user.setAffiliation(item.getAttribute("affiliation"));
 						user.setRole(item.getAttribute("role"));
@@ -109,13 +109,17 @@ public class PresenceParser extends AbstractParser implements
 					if (codes.contains(MucOptions.STATUS_CODE_CHANGED_NICK)) {
 						mucOptions.mNickChangingInProgress = true;
 					} else if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
-						mucOptions.setError(MucOptions.KICKED_FROM_ROOM);
+						mucOptions.setError(MucOptions.Error.KICKED);
 					} else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
-						mucOptions.setError(MucOptions.ERROR_BANNED);
+						mucOptions.setError(MucOptions.Error.BANNED);
 					} else if (codes.contains(MucOptions.STATUS_CODE_LOST_MEMBERSHIP)) {
-						mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
+						mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
+					} else if (codes.contains(MucOptions.STATUS_CODE_AFFILIATION_CHANGE)) {
+						mucOptions.setError(MucOptions.Error.MEMBERS_ONLY);
+					} else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN)) {
+						mucOptions.setError(MucOptions.Error.SHUTDOWN);
 					} else {
-						mucOptions.setError(MucOptions.ERROR_UNKNOWN);
+						mucOptions.setError(MucOptions.Error.UNKNOWN);
 						Log.d(Config.LOGTAG, "unknown error in conference: " + packet);
 					}
 				} else if (!from.isBareJid()){
@@ -132,14 +136,14 @@ public class PresenceParser extends AbstractParser implements
 							mucOptions.onRenameListener.onFailure();
 						}
 					} else {
-						mucOptions.setError(MucOptions.ERROR_NICK_IN_USE);
+						mucOptions.setError(MucOptions.Error.NICK_IN_USE);
 					}
 				} else if (error != null && error.hasChild("not-authorized")) {
-					mucOptions.setError(MucOptions.ERROR_PASSWORD_REQUIRED);
+					mucOptions.setError(MucOptions.Error.PASSWORD_REQUIRED);
 				} else if (error != null && error.hasChild("forbidden")) {
-					mucOptions.setError(MucOptions.ERROR_BANNED);
+					mucOptions.setError(MucOptions.Error.BANNED);
 				} else if (error != null && error.hasChild("registration-required")) {
-					mucOptions.setError(MucOptions.ERROR_MEMBERS_ONLY);
+					mucOptions.setError(MucOptions.Error.BANNED);
 				}
 			}
 		}
diff --git a/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java b/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
index 59a37fe51..e8616bd8f 100644
--- a/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
+++ b/src/main/java/eu/siacs/conversations/services/MessageArchiveService.java
@@ -227,7 +227,6 @@ public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
 			this.execute(nextQuery);
 			this.finalizeQuery(query, false);
 			synchronized (this.queries) {
-				this.queries.remove(query);
 				this.queries.add(nextQuery);
 			}
 		}
diff --git a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
index b836e780a..24a728f7d 100644
--- a/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
+++ b/src/main/java/eu/siacs/conversations/services/XmppConnectionService.java
@@ -1824,9 +1824,11 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 					fetchConferenceConfiguration(conversation);
 				}
 			});
-
+			updateConversationUi();
 		} else {
 			account.pendingConferenceJoins.add(conversation);
+			conversation.resetMucOptions();
+			updateConversationUi();
 		}
 	}
 
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index ac06452a5..c652c3c0a 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -809,26 +809,29 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 				&& !conversation.getMucOptions().online()
 				&& account.getStatus() == Account.State.ONLINE) {
 			switch (conversation.getMucOptions().getError()) {
-				case MucOptions.ERROR_NICK_IN_USE:
+				case NICK_IN_USE:
 					showSnackbar(R.string.nick_in_use, R.string.edit, clickToMuc);
 					break;
-				case MucOptions.ERROR_NO_RESPONSE:
-					showSnackbar(R.string.conference_not_found, R.string.leave, leaveMuc);
+				case NO_RESPONSE:
+					showSnackbar(R.string.joining_conference, 0, null);
 					break;
-				case MucOptions.ERROR_PASSWORD_REQUIRED:
+				case PASSWORD_REQUIRED:
 					showSnackbar(R.string.conference_requires_password, R.string.enter_password, enterPassword);
 					break;
-				case MucOptions.ERROR_BANNED:
+				case BANNED:
 					showSnackbar(R.string.conference_banned, R.string.leave, leaveMuc);
 					break;
-				case MucOptions.ERROR_MEMBERS_ONLY:
+				case MEMBERS_ONLY:
 					showSnackbar(R.string.conference_members_only, R.string.leave, leaveMuc);
 					break;
-				case MucOptions.KICKED_FROM_ROOM:
+				case KICKED:
 					showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
 					break;
-				case MucOptions.ERROR_UNKNOWN:
-					showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
+				case UNKNOWN:
+					showSnackbar(R.string.conference_unknown_error, R.string.join, joinMuc);
+					break;
+				case SHUTDOWN:
+					showSnackbar(R.string.conference_shutdown, R.string.join, joinMuc);
 					break;
 				default:
 					break;
@@ -1091,8 +1094,10 @@ public class ConversationFragment extends Fragment implements EditMessage.Keyboa
 		snackbar.setOnClickListener(null);
 		snackbarMessage.setText(message);
 		snackbarMessage.setOnClickListener(null);
-		snackbarAction.setVisibility(View.VISIBLE);
-		snackbarAction.setText(action);
+		snackbarAction.setVisibility(clickListener == null ? View.GONE : View.VISIBLE);
+		if (action != 0) {
+			snackbarAction.setText(action);
+		}
 		snackbarAction.setOnClickListener(clickListener);
 	}
 
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index acaaf1562..48c3de6c7 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -241,8 +241,7 @@
 	<string name="bookmark_already_exists">This bookmark already exists</string>
 	<string name="you">You</string>
 	<string name="action_edit_subject">Edit conference subject</string>
-	<string name="conference_not_found">Conference not found</string>
-	<string name="conference_unknown_error">Unknown error received</string>2
+	<string name="joining_conference">Joining conference…</string>
 	<string name="leave">Leave</string>
 	<string name="contact_added_you">Contact added you to contact list</string>
 	<string name="add_back">Add back</string>
@@ -340,6 +339,8 @@
 	<string name="conference_banned">You are banned from this conference</string>
 	<string name="conference_members_only">This conference is members only</string>
 	<string name="conference_kicked">You have been kicked from this conference</string>
+	<string name="conference_shutdown">The conference was shut down</string>
+	<string name="conference_unknown_error">You are no longer in this conference</string>
 	<string name="using_account">using account %s</string>
 	<string name="checking_x">Checking %s on HTTP host</string>
 	<string name="not_connected_try_again">You are not connected. Try again later</string>