diff --git a/openvidu-server/src/main/java/io/openvidu/server/core/SessionEventsHandler.java b/openvidu-server/src/main/java/io/openvidu/server/core/SessionEventsHandler.java
index 112cdbaf..61f618f2 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/core/SessionEventsHandler.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/core/SessionEventsHandler.java
@@ -227,18 +227,25 @@ public class SessionEventsHandler {
 			return;
 		}
 
-		if (participant.isRecorderOrSttParticipant()) {
+		// Return if recorder participant
+		if (participant.isRecorderParticipant()) {
 			this.rpcNotificationService.immediatelyCloseRpcSession(participant.getParticipantPrivateId());
 			return;
 		}
 
-		JsonObject params = new JsonObject();
-		params.addProperty(ProtocolElements.PARTICIPANTLEFT_NAME_PARAM, participant.getParticipantPublicId());
-		params.addProperty(ProtocolElements.PARTICIPANTLEFT_REASON_PARAM, reason != null ? reason.name() : "");
+		if (!participant.isSttParticipant()) {
+
+			JsonObject params = new JsonObject();
+			params.addProperty(ProtocolElements.PARTICIPANTLEFT_NAME_PARAM, participant.getParticipantPublicId());
+			params.addProperty(ProtocolElements.PARTICIPANTLEFT_REASON_PARAM, reason != null ? reason.name() : "");
+
+			for (Participant p : remainingParticipants) {
+				rpcNotificationService.sendNotification(p.getParticipantPrivateId(),
+						ProtocolElements.PARTICIPANTLEFT_METHOD, params);
+			}
+
+			CDR.recordParticipantLeft(participant, sessionId, reason);
 
-		for (Participant p : remainingParticipants) {
-			rpcNotificationService.sendNotification(p.getParticipantPrivateId(),
-					ProtocolElements.PARTICIPANTLEFT_METHOD, params);
 		}
 
 		if (transactionId != null) {
@@ -254,7 +261,6 @@ public class SessionEventsHandler {
 			this.rpcNotificationService.scheduleCloseRpcSession(participant.getParticipantPrivateId(), 10000);
 		}
 
-		CDR.recordParticipantLeft(participant, sessionId, reason);
 	}
 
 	public void onPublishMedia(Participant participant, String streamId, Long createdAt, String sessionId,
diff --git a/openvidu-server/src/main/java/io/openvidu/server/core/SessionManager.java b/openvidu-server/src/main/java/io/openvidu/server/core/SessionManager.java
index 04b1b359..6e916f8b 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/core/SessionManager.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/core/SessionManager.java
@@ -364,10 +364,13 @@ public abstract class SessionManager {
 		return tokenObj;
 	}
 
-	public Token newTokenForInsecureUser(Session session, String token, ConnectionProperties connectionProperties)
-			throws Exception {
+	public Token newTokenForInsecureUser(Session session, String token, ConnectionProperties connectionProperties,
+			String connectionId) throws Exception {
 		Token tokenObj = new Token(token, session.getSessionId(), connectionProperties,
 				this.coturnCredentialsService.createUser());
+		if (connectionId != null) {
+			tokenObj.setConnectionId(connectionId);
+		}
 		session.storeToken(tokenObj);
 		return tokenObj;
 	}
@@ -444,7 +447,8 @@ public abstract class SessionManager {
 		}
 	}
 
-	public Participant newSttParticipant(Session session, String participantPrivateId, Token token, String clientMetadata) {
+	public Participant newSttParticipant(Session session, String participantPrivateId, Token token,
+			String clientMetadata) {
 		String sessionId = session.getSessionId();
 		if (this.sessionidParticipantpublicidParticipant.get(sessionId) != null) {
 			return newParticipantAux(sessionId, session.getUniqueSessionId(), null, participantPrivateId,
diff --git a/openvidu-server/src/main/java/io/openvidu/server/kurento/core/KurentoSessionManager.java b/openvidu-server/src/main/java/io/openvidu/server/kurento/core/KurentoSessionManager.java
index dfe30521..30793d33 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/kurento/core/KurentoSessionManager.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/kurento/core/KurentoSessionManager.java
@@ -1161,7 +1161,7 @@ public class KurentoSessionManager extends SessionManager {
 		String token = IdentifierPrefixes.TOKEN_ID + RandomStringUtils.randomAlphabetic(1).toUpperCase()
 				+ RandomStringUtils.randomAlphanumeric(15);
 
-		this.newTokenForInsecureUser(session, token, connectionProperties);
+		this.newTokenForInsecureUser(session, token, connectionProperties, null);
 		final Token tokenObj = session.consumeToken(token);
 
 		Participant ipcamParticipant = this.newIpcamParticipant(session, rtspConnectionId, tokenObj, location,
diff --git a/openvidu-server/src/main/java/io/openvidu/server/rpc/RpcHandler.java b/openvidu-server/src/main/java/io/openvidu/server/rpc/RpcHandler.java
index fb7fa324..f13d860f 100644
--- a/openvidu-server/src/main/java/io/openvidu/server/rpc/RpcHandler.java
+++ b/openvidu-server/src/main/java/io/openvidu/server/rpc/RpcHandler.java
@@ -277,12 +277,6 @@ public class RpcHandler extends DefaultJsonRpcHandler<JsonObject> {
 
 		if (openviduConfig.isOpenViduSecret(secret)) {
 
-			if (recorder) {
-				generateRecorderParticipant = true;
-			} else if (stt) {
-				generateSttParticipant = true;
-			}
-
 			sessionManager.newInsecureParticipant(participantPrivateId);
 
 			token = IdentifierPrefixes.TOKEN_ID + RandomStringUtils.randomAlphabetic(1).toUpperCase()
@@ -290,8 +284,17 @@ public class RpcHandler extends DefaultJsonRpcHandler<JsonObject> {
 			ConnectionProperties connectionProperties = new ConnectionProperties.Builder().type(ConnectionType.WEBRTC)
 					.role(OpenViduRole.SUBSCRIBER).build();
 
+			String connectionId = null;
+			if (recorder) {
+				generateRecorderParticipant = true;
+				connectionId = ProtocolElements.RECORDER_PARTICIPANT_PUBLICID;
+			} else if (stt) {
+				generateSttParticipant = true;
+				connectionId = ProtocolElements.STT_PARTICIPANT_PUBLICID;
+			}
+
 			try {
-				sessionManager.newTokenForInsecureUser(session, token, connectionProperties);
+				sessionManager.newTokenForInsecureUser(session, token, connectionProperties, connectionId);
 			} catch (Exception e) {
 				throw new OpenViduException(Code.TOKEN_CANNOT_BE_CREATED_ERROR_CODE,
 						"Unable to create token for session " + sessionId + ": " + e.getMessage());
@@ -890,9 +893,10 @@ public class RpcHandler extends DefaultJsonRpcHandler<JsonObject> {
 			// Sanity check: don't call RPC method unless the id checks out
 			Participant participant = sessionManager.getParticipant(sessionId, participantPrivateId);
 			if (participant != null) {
-				errorMsg = "Participant " + participant.getParticipantPublicId() + " is calling method '" + methodName
-						+ "' in session " + sessionId;
-				log.info(errorMsg);
+				if (methodName != "videoData") {
+					log.info("Participant {} is calling method '{}' in session {}",
+							participant.getParticipantPublicId(), methodName, sessionId);
+				}
 				return participant;
 			} else {
 				errorMsg = "Participant with private id " + participantPrivateId + " not found in session " + sessionId