diff --git a/CMakeLists.txt b/CMakeLists.txt
index 54396e2d..499999bb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -358,7 +358,7 @@ if (NOT CROSSTOOLS)
 		pip_find_lib(sodium)
 		if(sodium_FOUND)
 			pip_module(crypt "sodium" "PIP crypt support" "" "")
-			pip_module(cloud "pip_crypt" "PIP cloud support" "" "")
+			pip_module(cloud "pip_io_utils" "PIP cloud support" "" "")
 		endif()
 
 
diff --git a/libs/cloud/picloudbase.cpp b/libs/cloud/picloudbase.cpp
index 8ccd9f72..6873421e 100644
--- a/libs/cloud/picloudbase.cpp
+++ b/libs/cloud/picloudbase.cpp
@@ -1,6 +1,6 @@
 #include "picloudbase.h"
 
 
-PICloudBase::PICloudBase() : eth(PIEthernet::TCP_Client) {
+PICloudBase::PICloudBase() : eth(PIEthernet::TCP_Client), streampacker(&eth), tcp(&streampacker) {
 
 }
diff --git a/libs/cloud/picloudclient.cpp b/libs/cloud/picloudclient.cpp
index c5d960f6..b548adbc 100644
--- a/libs/cloud/picloudclient.cpp
+++ b/libs/cloud/picloudclient.cpp
@@ -21,10 +21,19 @@
 #include "picloudtcp.h"
 
 
-PICloudClient::PICloudClient(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode) {
+PICloudClient::PICloudClient(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode), PICloudBase() {
 	tcp.setRole(PICloud::TCP::Client);
 	setName("cloud_client");
 	is_connected = false;
+	CONNECTL(&eth, connected, [this](){tcp.sendStart();});
+	CONNECTU(&streampacker, packetReceiveEvent, this, _readed);
+	CONNECTL(&eth, disconnected, [this](bool){
+		piCoutObj << "disconnected";
+		opened_ = false;
+		is_connected = false;
+		cond_connect.notifyOne();
+		piMSleep(100);
+	});
 }
 
 
@@ -49,17 +58,17 @@ bool PICloudClient::openDevice() {
 	piCout << "PICloudClient open device" << path();
 	bool op = eth.connect(path(), false);
 	if (op) {
-		CONNECTL(&eth, connected, [this](){tcp.sendStart(&eth);});
-		CONNECTU(&eth, threadedReadEvent, this, readed);
-		CONNECTL(&eth, disconnected, [this](bool){
-			opened_ = false;
-			eth.close();
-			piCoutObj << "disconnected";// << !isOpened() << isClosed();
-			piMSleep(100);
-		});
+		mutex_buff.lock();
 		eth.startThreadedRead();
-		tcp.sendStart(&eth);
-		return true;
+		bool conn_ok = cond_connect.waitFor(mutex_buff, (int)eth.readTimeout(), [this](){return isConnected();});
+		piCoutObj << "conn_ok" << conn_ok;
+		mutex_buff.unlock();
+		if (!conn_ok) {
+			eth.stop();
+			eth.close();
+			piMSleep(100);
+		}
+		return isConnected();
 	} else {
 		eth.close();
 		return false;
@@ -92,14 +101,16 @@ int PICloudClient::writeDevice(const void * data, int max_size) {
 }
 
 
-void PICloudClient::readed(uchar *data, int size) {
-	PIByteArray ba(data, size);
+void PICloudClient::_readed(PIByteArray & ba) {
 	mutex_buff.lock();
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
 	if (hdr.second == tcp.role()) {
 		switch (hdr.first) {
 		case PICloud::TCP::Connect:
-			if (tcp.parseConnect(ba) == 0) is_connected = true;
+			if (tcp.parseConnect(ba) == 1) {
+				is_connected = true;
+				cond_connect.notifyOne();
+			}
 		break;
 		case PICloud::TCP::Disconnect:
 			is_connected = false;
@@ -107,7 +118,7 @@ void PICloudClient::readed(uchar *data, int size) {
 			eth.close();
 		break;
 		case PICloud::TCP::Data:
-			buff.append(data, size);
+			buff.append(ba);
 			cond_buff.notifyOne();
 		break;
 		default:
diff --git a/libs/cloud/picloudserver.cpp b/libs/cloud/picloudserver.cpp
index 51ce349a..eba14c78 100644
--- a/libs/cloud/picloudserver.cpp
+++ b/libs/cloud/picloudserver.cpp
@@ -21,10 +21,17 @@
 
 
 PICloudServer::PICloudServer(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode), PICloudBase() {
-	PIString name = "PCS_" + PIString::fromNumber(randomi()%1000);
+	PIString server_name = "PCS_" + PIString::fromNumber(randomi()%1000);
 	tcp.setRole(PICloud::TCP::Server);
-	tcp.setServerName(name);
-	setName("cloud_server__" + name);
+	tcp.setServerName(server_name);
+	setName("cloud_server__" + server_name);
+	CONNECTU(&streampacker, packetReceiveEvent, this, _readed);
+	CONNECTL(&eth, connected, [this](){tcp.sendStart();});
+	CONNECTL(&eth, disconnected, [this](bool){
+		piCoutObj << "disconnected";
+		opened_ = false;
+		piMSleep(100);
+	});
 }
 
 
@@ -49,15 +56,7 @@ bool PICloudServer::openDevice() {
 	piCout << "PICloudServer open device" << path();
 	bool op = eth.connect(path(), false);
 	if (op) {
-		CONNECTU(&eth, threadedReadEvent, this, readed);
-		CONNECTL(&eth, connected, [this](){tcp.sendStart(&eth);});
-		CONNECTL(&eth, disconnected, [this](bool){
-			opened_ = false;
-			eth.close();
-			piCoutObj << "disconnected" << !isOpened() << isClosed();
-		});
 		eth.startThreadedRead();
-		tcp.sendStart(&eth);
 		return true;
 	}
 	eth.close();
@@ -87,12 +86,12 @@ int PICloudServer::writeDevice(const void * data, int max_size) {
 
 
 void PICloudServer::clientDisconnect(uint client_id) {
-	tcp.sendDisconnected(&eth, client_id);
+	tcp.sendDisconnected(client_id);
 }
 
 
 int PICloudServer::sendData(const PIByteArray & data, uint client_id) {
-	return tcp.sendData(&eth, data, client_id);
+	return tcp.sendData(data, client_id);
 }
 
 
@@ -138,8 +137,7 @@ void PICloudServer::Client::pushBuffer(const PIByteArray & ba) {
 }
 
 
-void PICloudServer::readed(uchar *data, int size) {
-	PIByteArray ba(data, size);
+void PICloudServer::_readed(PIByteArray & ba) {
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
 	if (hdr.second == tcp.role()) {
 		switch (hdr.first) {
@@ -147,7 +145,7 @@ void PICloudServer::readed(uchar *data, int size) {
 			uint id = tcp.parseConnect(ba);
 			Client * oc = index_clients.value(id, nullptr);
 			if (oc) {
-				tcp.sendDisconnected(&eth, id);
+				tcp.sendDisconnected(id);
 			} else {
 				Client * c = new Client(this, id);
 				clients << c;
diff --git a/libs/cloud/picloudtcp.cpp b/libs/cloud/picloudtcp.cpp
index 642f7024..10805070 100644
--- a/libs/cloud/picloudtcp.cpp
+++ b/libs/cloud/picloudtcp.cpp
@@ -21,6 +21,7 @@
 #include "picrypt.h"
 #include "pichunkstream.h"
 #include "piethernet.h"
+#include "pistreampacker.h"
 
 
 const char hash_def_key[] = "_picrypt_";
@@ -31,9 +32,9 @@ PICloud::TCP::Header::Header() {
 }
 
 
-PICloud::TCP::TCP() {
-}
+PICloud::TCP::TCP(PIStreamPacker * s) : streampacker(s) {
 
+}
 
 void PICloud::TCP::setRole(PICloud::TCP::Role r) {
 	header.role = r;
@@ -45,53 +46,55 @@ void PICloud::TCP::setServerName(const PIString & server_name) {
 }
 
 
-void PICloud::TCP::sendStart(PIEthernet * eth) {
+void PICloud::TCP::sendStart() {
+	piCout << "sendStart";
 	header.type = PICloud::TCP::Connect;
 	PIByteArray ba;
 	ba << header << sname;
-	eth->send(ba);
+	streampacker->send(ba);
 }
 
 
-void PICloud::TCP::sendConnected(PIEthernet * eth, uint client_id) {
+void PICloud::TCP::sendConnected(uint client_id) {
 	header.type = PICloud::TCP::Connect;
 	PIByteArray ba;
 	ba << header << client_id;
-	eth->send(ba);
+	streampacker->send(ba);
 }
 
 
-void PICloud::TCP::sendDisconnected(PIEthernet * eth, uint client_id) {
+void PICloud::TCP::sendDisconnected(uint client_id) {
 	header.type = PICloud::TCP::Disconnect;
 	PIByteArray ba;
 	ba << header << client_id;
-	eth->send(ba);
+	streampacker->send(ba);
 }
 
 
-void PICloud::TCP::sendData(PIEthernet * eth, const PIByteArray & data) {
+void PICloud::TCP::sendData(const PIByteArray & data) {
 	header.type = PICloud::TCP::Data;
 	PIByteArray ba;
 	ba << header;
 	ba.append(data);
 //	piCout << "sendData" << ba.toHex();
-	eth->send(ba);
+	streampacker->send(ba);
 }
 
 
-int PICloud::TCP::sendData(PIEthernet * eth, const PIByteArray & data, uint client_id) {
+int PICloud::TCP::sendData(const PIByteArray & data, uint client_id) {
 	header.type = PICloud::TCP::Data;
 	PIByteArray ba;
 	ba << header << client_id;
 	ba.append(data);
-	if (eth->send(ba)) return data.size_s();
-	else return -1;
+	streampacker->send(ba);
+	return data.size_s();
 }
 
 
 PIPair<PICloud::TCP::Type, PICloud::TCP::Role> PICloud::TCP::parseHeader(PIByteArray & ba) {
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> ret;
-	ret.first = Invalid;
+	ret.first = InvalidType;
+	ret.second = InvalidRole;
 	if (ba.size() < sizeof(Header)) return ret;
 	PICloud::TCP::Header hdr;
 	ba >> hdr;
diff --git a/libs/main/cloud/picloudbase.h b/libs/main/cloud/picloudbase.h
index 7ad4b7dd..858846d8 100644
--- a/libs/main/cloud/picloudbase.h
+++ b/libs/main/cloud/picloudbase.h
@@ -25,6 +25,7 @@
 
 #include "picloudtcp.h"
 #include "piethernet.h"
+#include "pistreampacker.h"
 
 
 class PICloudBase
@@ -34,6 +35,7 @@ public:
 
 protected:
 	PIEthernet eth;
+	PIStreamPacker streampacker;
 	PICloud::TCP tcp;
 };
 
diff --git a/libs/main/cloud/picloudclient.h b/libs/main/cloud/picloudclient.h
index 08a0f0cd..c1bbfce7 100644
--- a/libs/main/cloud/picloudclient.h
+++ b/libs/main/cloud/picloudclient.h
@@ -41,14 +41,17 @@ public:
 protected:
 	bool openDevice();
 	bool closeDevice();
+	bool isConnected() const {return is_connected;}
 	int readDevice(void * read_to, int max_size);
 	int writeDevice(const void * data, int max_size);
 
 private:
-	EVENT_HANDLER2(void, readed, uchar * , data, int, size);
+	EVENT_HANDLER1(void, _readed, PIByteArray &, data);
 	PIByteArray buff;
 	PIMutex mutex_buff;
+	PIMutex mutex_connect;
 	PIConditionVariable cond_buff;
+	PIConditionVariable cond_connect;
 	std::atomic_bool is_connected;
 };
 
diff --git a/libs/main/cloud/picloudserver.h b/libs/main/cloud/picloudserver.h
index cd762216..484fdb4c 100644
--- a/libs/main/cloud/picloudserver.h
+++ b/libs/main/cloud/picloudserver.h
@@ -66,7 +66,7 @@ protected:
 	int writeDevice(const void * data, int max_size);
 
 private:
-	EVENT_HANDLER2(void, readed, uchar * , data, int, size);
+	EVENT_HANDLER1(void, _readed, PIByteArray &, ba);
 	void clientDisconnect(uint client_id);
 	int sendData(const PIByteArray & data, uint client_id);
 
diff --git a/libs/main/cloud/picloudtcp.h b/libs/main/cloud/picloudtcp.h
index a5201260..e62ca2e6 100644
--- a/libs/main/cloud/picloudtcp.h
+++ b/libs/main/cloud/picloudtcp.h
@@ -28,6 +28,7 @@
 
 
 class PIEthernet;
+class PIStreamPacker;
 
 namespace PICloud {
 
@@ -40,27 +41,28 @@ public:
 	};
 
 	enum Role {
+		InvalidRole = 0,
 		Server = 1,
 		Client = 2,
 	};
 
 	enum Type {
-		Invalid = 0,
+		InvalidType = 0,
 		Connect = 1,
 		Disconnect = 2,
 		Data = 3,
 	};
 
-	TCP();
+	TCP(PIStreamPacker * s);
 	void setRole(Role r);
 	Role role() const {return (Role)header.role;}
 	void setServerName(const PIString & server_name);
 
-	void sendStart(PIEthernet * eth);
-	void sendConnected(PIEthernet * eth, uint client_id);
-	void sendDisconnected(PIEthernet * eth, uint client_id);
-	void sendData(PIEthernet * eth, const PIByteArray & data);
-	int sendData(PIEthernet * eth, const PIByteArray & data, uint client_id);
+	void sendStart();
+	void sendConnected(uint client_id);
+	void sendDisconnected(uint client_id);
+	void sendData(const PIByteArray & data);
+	int sendData(const PIByteArray & data, uint client_id);
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> parseHeader(PIByteArray & ba);
 	PIByteArray parseData(PIByteArray & ba);
 	PIPair<uint, PIByteArray> parseDataServer(PIByteArray & ba);
@@ -78,6 +80,7 @@ private:
 
 	Header header;
 	PIString sname;
+	PIStreamPacker * streampacker;
 };
 
 }
diff --git a/libs/main/io_utils/pistreampacker.h b/libs/main/io_utils/pistreampacker.h
index f9777ee4..9b6d2fbd 100644
--- a/libs/main/io_utils/pistreampacker.h
+++ b/libs/main/io_utils/pistreampacker.h
@@ -91,7 +91,7 @@ public:
 	//! Returns \a Progress info about receiving
 	Progress progressReceive() const;
 
-	EVENT1(packetReceiveEvent, PIByteArray, data)
+	EVENT1(packetReceiveEvent, PIByteArray &, data)
 	EVENT1(sendRequest, PIByteArray, data)
 
 	//! \handlers
diff --git a/utils/cloud_dispatcher/cloudserver.cpp b/utils/cloud_dispatcher/cloudserver.cpp
index 66343413..386c2b54 100644
--- a/utils/cloud_dispatcher/cloudserver.cpp
+++ b/utils/cloud_dispatcher/cloudserver.cpp
@@ -21,6 +21,7 @@ PIString CloudServer::serverName() const {
 void CloudServer::addClient(DispatcherClient * c) {
 	clients << c;
 	index_clients.insert(c->clientId(), c);
+	c->sendConnected();
 }
 
 
diff --git a/utils/cloud_dispatcher/dispatcherclient.cpp b/utils/cloud_dispatcher/dispatcherclient.cpp
index 7388466f..fca8acd6 100644
--- a/utils/cloud_dispatcher/dispatcherclient.cpp
+++ b/utils/cloud_dispatcher/dispatcherclient.cpp
@@ -2,9 +2,9 @@
 #include "picloudtcp.h"
 
 
-DispatcherClient::DispatcherClient(PIEthernet * eth_, int id) : eth(eth_), authorised(false), client_id(id) {
+DispatcherClient::DispatcherClient(PIEthernet * eth_, int id) : authorised(false), eth(eth_), streampacker(eth_), tcp(&streampacker), client_id(id) {
 	CONNECTU(&disconnect_tm, tickEvent, eth, close);
-	CONNECTU(eth, threadedReadEvent, this, readed);
+	CONNECTU(&streampacker, packetReceiveEvent, this, readed);
 	CONNECTU(eth, disconnected, this, disconnected);
 	piCoutObj << "client connected" << eth->sendAddress();
 }
@@ -31,18 +31,19 @@ void DispatcherClient::close() {
 
 
 void DispatcherClient::sendConnected() {
-	tcp.sendConnected(eth, client_id);
+	piCoutObj << "sendConnected";
+	tcp.sendConnected(1);
 }
 
 
 void DispatcherClient::sendData(const PIByteArray & data) {
-	if (tcp.role() == PICloud::TCP::Client) tcp.sendData(eth, data);
+	if (tcp.role() == PICloud::TCP::Client) tcp.sendData(data);
 	else piCoutObj << "error sendData, invalid role";
 }
 
 
 void DispatcherClient::sendDataToClient(const PIByteArray & data, uint client_id) {
-	if (tcp.role() == PICloud::TCP::Server) tcp.sendData(eth, data, client_id);
+	if (tcp.role() == PICloud::TCP::Server) tcp.sendData(data, client_id);
 	else piCoutObj << "error sendDataToClient, invalid role";
 }
 
@@ -53,11 +54,10 @@ void DispatcherClient::disconnected(bool withError) {
 }
 
 
-void DispatcherClient::readed(uchar *data, int size) {
+void DispatcherClient::readed(PIByteArray & ba) {
 //	piCout << size;
-	PIByteArray ba(data, size);
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
-	if (hdr.first == PICloud::TCP::Invalid) {
+	if (hdr.first == PICloud::TCP::InvalidType) {
 		disconnected(true);
 		return;
 	}
diff --git a/utils/cloud_dispatcher/dispatcherclient.h b/utils/cloud_dispatcher/dispatcherclient.h
index 2cd8acae..c4bc3534 100644
--- a/utils/cloud_dispatcher/dispatcherclient.h
+++ b/utils/cloud_dispatcher/dispatcherclient.h
@@ -3,6 +3,7 @@
 
 #include "piethernet.h"
 #include "picloudtcp.h"
+#include "pistreampacker.h"
 
 
 class DispatcherClient: public PIObject {
@@ -23,12 +24,13 @@ public:
 	EVENT1(dataReaded, PIByteArray, ba)
 
 private:
-	EVENT_HANDLER2(void, readed, uchar * , data, int, size);
+	EVENT_HANDLER1(void, readed, PIByteArray &, data);
 	EVENT_HANDLER1(void, disconnected, bool, withError);
 
-	PIEthernet * eth;
 	PITimer disconnect_tm;
 	bool authorised;
+	PIEthernet * eth;
+	PIStreamPacker streampacker;
 	PICloud::TCP tcp;
 	uint client_id;
 };