diff --git a/src/main/java/eu/siacs/conversations/entities/MucOptions.java b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
index 34f437e1c..060b1b6f6 100644
--- a/src/main/java/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
@@ -725,6 +725,7 @@ public class MucOptions {
         SHUTDOWN,
         DESTROYED,
         INVALID_NICK,
+        TECHNICAL_PROBLEMS,
         UNKNOWN,
         NON_ANONYMOUS
     }
diff --git a/src/main/java/eu/siacs/conversations/generator/IqGenerator.java b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
index 2776aa4f0..6b87cb36d 100644
--- a/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
+++ b/src/main/java/eu/siacs/conversations/generator/IqGenerator.java
@@ -136,8 +136,8 @@ public class IqGenerator extends AbstractGenerator {
         return publish(Namespace.NICK, item);
     }
 
-    public IqPacket deleteNode(String node) {
-        IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
+    public IqPacket deleteNode(final String node) {
+        final IqPacket packet = new IqPacket(IqPacket.TYPE.SET);
         final Element pubsub = packet.addChild("pubsub", Namespace.PUBSUB_OWNER);
         pubsub.addChild("delete").setAttribute("node", node);
         return packet;
diff --git a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
index 341e8d9a0..8ad582b17 100644
--- a/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
+++ b/src/main/java/eu/siacs/conversations/parser/PresenceParser.java
@@ -56,7 +56,8 @@ public class PresenceParser extends AbstractParser implements
 	}
 
 	private void processConferencePresence(PresencePacket packet, Conversation conversation) {
-		MucOptions mucOptions = conversation.getMucOptions();
+		final Account account = conversation.getAccount();
+		final MucOptions mucOptions = conversation.getMucOptions();
 		final Jid jid = conversation.getAccount().getJid();
 		final Jid from = packet.getFrom();
 		if (!from.isBareJid()) {
@@ -93,7 +94,7 @@ public class PresenceParser extends AbstractParser implements
 							axolotlService.fetchDeviceIds(user.getRealJid());
 						}
 						if (codes.contains(MucOptions.STATUS_CODE_ROOM_CREATED) && mucOptions.autoPushConfiguration()) {
-							Log.d(Config.LOGTAG,mucOptions.getAccount().getJid().asBareJid()
+							Log.d(Config.LOGTAG,account.getJid().asBareJid()
 									+": room '"
 									+mucOptions.getConversation().getJid().asBareJid()
 									+"' created. pushing default configuration");
@@ -138,13 +139,24 @@ public class PresenceParser extends AbstractParser implements
 					final Jid alternate = destroy == null ? null : InvalidJid.getNullForInvalid(destroy.getAttributeAsJid("jid"));
 					mucOptions.setError(MucOptions.Error.DESTROYED);
 					if (alternate != null) {
-						Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": muc destroyed. alternate location " + alternate);
+						Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": muc destroyed. alternate location " + alternate);
 					}
 				} else if (codes.contains(MucOptions.STATUS_CODE_SHUTDOWN) && fullJidMatches) {
 					mucOptions.setError(MucOptions.Error.SHUTDOWN);
 				} else if (codes.contains(MucOptions.STATUS_CODE_SELF_PRESENCE)) {
 					if (codes.contains(MucOptions.STATUS_CODE_TECHNICAL_REASONS)) {
-						mucOptions.setError(MucOptions.Error.UNKNOWN);
+                        final boolean wasOnline = mucOptions.online();
+                        mucOptions.setError(MucOptions.Error.TECHNICAL_PROBLEMS);
+                        Log.d(
+                                Config.LOGTAG,
+                                account.getJid().asBareJid()
+                                        + ": received status code 333 in room "
+                                        + mucOptions.getConversation().getJid().asBareJid()
+                                        + " online="
+                                        + wasOnline);
+                        if (wasOnline) {
+                            mXmppConnectionService.mucSelfPingAndRejoin(conversation);
+                        }
 					} else if (codes.contains(MucOptions.STATUS_CODE_KICKED)) {
 						mucOptions.setError(MucOptions.Error.KICKED);
 					} else if (codes.contains(MucOptions.STATUS_CODE_BANNED)) {
diff --git a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
index 0471c014f..3b923adce 100644
--- a/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
+++ b/src/main/java/eu/siacs/conversations/ui/ConversationFragment.java
@@ -2721,6 +2721,9 @@ public class ConversationFragment extends XmppFragment
                 case KICKED:
                     showSnackbar(R.string.conference_kicked, R.string.join, joinMuc);
                     break;
+                case TECHNICAL_PROBLEMS:
+                    showSnackbar(R.string.conference_technical_problems, R.string.try_again, joinMuc);
+                    break;
                 case UNKNOWN:
                     showSnackbar(R.string.conference_unknown_error, R.string.try_again, joinMuc);
                     break;
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index d4e2c0d57..299c57b33 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -301,6 +301,7 @@
     <string name="conference_kicked">You have been kicked from this group chat</string>
     <string name="conference_shutdown">The group chat was shut down</string>
     <string name="conference_unknown_error">You are no longer in this group chat</string>
+    <string name="conference_technical_problems">You left this group chat due to technical reasons</string>
     <string name="using_account">using account %s</string>
     <string name="hosted_on">hosted on %s</string>
     <string name="checking_x">Checking %s on HTTP host</string>