diff --git a/libs/cloud/picloudbase.cpp b/libs/cloud/picloudbase.cpp
new file mode 100644
index 00000000..8ccd9f72
--- /dev/null
+++ b/libs/cloud/picloudbase.cpp
@@ -0,0 +1,6 @@
+#include "picloudbase.h"
+
+
+PICloudBase::PICloudBase() : eth(PIEthernet::TCP_Client) {
+
+}
diff --git a/libs/cloud/picloudclient.cpp b/libs/cloud/picloudclient.cpp
index b35c7a82..01a3d29b 100644
--- a/libs/cloud/picloudclient.cpp
+++ b/libs/cloud/picloudclient.cpp
@@ -21,7 +21,7 @@
 #include "picloudtcp.h"
 
 
-PICloudClient::PICloudClient(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode), eth(PIEthernet::TCP_Client) {
+PICloudClient::PICloudClient(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode) {
 	tcp.setRole(PICloud::TCP::Client);
 	setName("cloud_client");
 }
@@ -39,28 +39,49 @@ void PICloudClient::setServerName(const PIString & server_name) {
 }
 
 
+void PICloudClient::setKeepConnection(bool on) {
+	eth.setParameter(PIEthernet::KeepConnection, on);
+}
+
+
 bool PICloudClient::openDevice() {
 	piCout << "PICloudClient open device" << path();
 	bool op = eth.connect(path(), false);
 	if (op) {
-		CONNECTL(&eth, disconnected, [this](bool){opened_ = false;});
+		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);
+		});
 		eth.startThreadedRead();
 		tcp.sendStart(&eth);
 		return true;
+	} else {
+		eth.close();
+		return false;
 	}
-	eth.close();
-	return false;
 }
 
 
 bool PICloudClient::closeDevice() {
-	return eth.close();
+	eth.stop();
+	eth.close();
+	return true;
 }
 
 
 int PICloudClient::readDevice(void * read_to, int max_size) {
-	return eth.read(read_to, max_size);
+	piCoutObj << "readDevice";
+	mutex_buff.lock();
+	cond_buff.wait(mutex_buff, [this](){return !buff.isEmpty();});
+	int sz = piMini(max_size, buff.size());
+	memcpy(read_to, buff.data(), sz);
+	buff.remove(0, sz);
+	mutex_buff.unlock();
+	return sz;
 }
 
 
@@ -70,5 +91,15 @@ int PICloudClient::writeDevice(const void * data, int max_size) {
 
 
 void PICloudClient::readed(uchar *data, int size) {
-
+	PIByteArray ba(data, size);
+	mutex_buff.lock();
+	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
+	if (hdr.second == tcp.role()) {
+		piCoutObj << "readed" << ba.toHex();
+		buff.append(data, size);
+		cond_buff.notifyOne();
+	}
+	mutex_buff.unlock();
+	while (buff.size() > threadedReadBufferSize()) piMSleep(100);
 }
+
diff --git a/libs/cloud/picloudserver.cpp b/libs/cloud/picloudserver.cpp
index 64415822..429c87b1 100644
--- a/libs/cloud/picloudserver.cpp
+++ b/libs/cloud/picloudserver.cpp
@@ -20,27 +20,41 @@
 #include "picloudserver.h"
 
 
-PICloudServer::PICloudServer(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode), eth(PIEthernet::TCP_Client) {
-	PIString name = "cloud_server_" + PIString::fromNumber(randomi()%1000);
+PICloudServer::PICloudServer(const PIString & path, PIIODevice::DeviceMode mode) : PIIODevice(path, mode), PICloudBase() {
+	PIString name = "PCS_" + PIString::fromNumber(randomi()%1000);
 	tcp.setRole(PICloud::TCP::Server);
 	tcp.setServerName(name);
-	setName(name);
+	setName("cloud_server__" + name);
 }
 
 
 PICloudServer::~PICloudServer() {
+	for (auto & c : clients) {
+		c.stop();
+		c.close();
+	}
 	stop();
 	close();
 }
 
 
+void PICloudServer::setServerName(const PIString & server_name) {
+	setName("cloud_server__" + server_name);
+	tcp.setServerName(server_name);
+}
+
+
 bool PICloudServer::openDevice() {
 	piCout << "PICloudServer open device" << path();
 	bool op = eth.connect(path(), false);
 	if (op) {
-		CONNECTL(&eth, disconnected, [this](bool){opened_ = false;});
 		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;
@@ -51,7 +65,13 @@ bool PICloudServer::openDevice() {
 
 
 bool PICloudServer::closeDevice() {
-	return eth.close();
+	eth.stop();
+	for (auto & c : clients) {
+		c.stop();
+		c.close();
+	}
+	eth.close();
+	return true;
 }
 
 
@@ -71,10 +91,14 @@ PICloudServer::Client::Client(PICloudServer * srv) : server(srv) {
 
 
 bool PICloudServer::Client::openDevice() {
-	return server;
+	return true;
 }
 
 
 void PICloudServer::readed(uchar *data, int size) {
-
+	PIByteArray ba(data, size);
+	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
+	if (hdr.second == tcp.role()) {
+		piCoutObj << "readed" << ba.toHex();
+	}
 }
diff --git a/libs/cloud/picloudtcp.cpp b/libs/cloud/picloudtcp.cpp
index 42864ab0..3c4cd892 100644
--- a/libs/cloud/picloudtcp.cpp
+++ b/libs/cloud/picloudtcp.cpp
@@ -53,6 +53,24 @@ void PICloud::TCP::sendStart(PIEthernet * eth) {
 }
 
 
+void PICloud::TCP::sendConnected(PIEthernet * eth, uint client_id) {
+	header.type = PICloud::TCP::Connect;
+	PIByteArray ba;
+	ba << header << client_id;
+	eth->send(ba);
+}
+
+
+void PICloud::TCP::sendData(PIEthernet * eth, const PIByteArray & data) {
+	header.type = PICloud::TCP::Data;
+	PIByteArray ba;
+	ba << header;
+	ba.append(data);
+//	piCout << "sendData" << ba.toHex();
+	eth->send(ba);
+}
+
+
 PIPair<PICloud::TCP::Type, PICloud::TCP::Role> PICloud::TCP::parseHeader(PIByteArray & ba) {
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> ret;
 	ret.first = Invalid;
diff --git a/libs/main/cloud/picloudbase.h b/libs/main/cloud/picloudbase.h
new file mode 100644
index 00000000..7ad4b7dd
--- /dev/null
+++ b/libs/main/cloud/picloudbase.h
@@ -0,0 +1,40 @@
+/*! \file picloudbase.h
+ * \brief PICloud Base - Base class for PICloudClient and PICloud Server
+*/
+/*
+	PIP - Platform Independent Primitives
+	PICloud Base - Base class for PICloudClient and PICloud Server
+	Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef PICLOUDBASE_H
+#define PICLOUDBASE_H
+
+#include "picloudtcp.h"
+#include "piethernet.h"
+
+
+class PICloudBase
+{
+public:
+	PICloudBase();
+
+protected:
+	PIEthernet eth;
+	PICloud::TCP tcp;
+};
+
+#endif // PICLOUDBASE_H
diff --git a/libs/main/cloud/picloudclient.h b/libs/main/cloud/picloudclient.h
index 27e86303..1d2513a7 100644
--- a/libs/main/cloud/picloudclient.h
+++ b/libs/main/cloud/picloudclient.h
@@ -23,11 +23,11 @@
 #ifndef PICLOUDCLIENT_H
 #define PICLOUDCLIENT_H
 
-#include "picloudtcp.h"
-#include "piethernet.h"
+#include "picloudbase.h"
+#include "piconditionvar.h"
 
 
-class PIP_CLOUD_EXPORT PICloudClient : public PIIODevice
+class PIP_CLOUD_EXPORT PICloudClient : public PIIODevice, private PICloudBase
 {
 	PIIODEVICE(PICloudClient)
 public:
@@ -36,6 +36,7 @@ public:
 	virtual ~PICloudClient();
 
 	void setServerName(const PIString & server_name);
+	void setKeepConnection(bool on);
 
 protected:
 	bool openDevice();
@@ -45,9 +46,9 @@ protected:
 
 private:
 	EVENT_HANDLER2(void, readed, uchar * , data, int, size);
-
-	PIEthernet eth;
-	PICloud::TCP tcp;
+	PIByteArray buff;
+	PIMutex mutex_buff;
+	PIConditionVariable cond_buff;
 };
 
 #endif // PICLOUDCLIENT_H
diff --git a/libs/main/cloud/picloudserver.h b/libs/main/cloud/picloudserver.h
index a432481b..2ab2a79d 100644
--- a/libs/main/cloud/picloudserver.h
+++ b/libs/main/cloud/picloudserver.h
@@ -23,11 +23,10 @@
 #ifndef PICLOUDSERVER_H
 #define PICLOUDSERVER_H
 
-#include "picloudtcp.h"
-#include "piethernet.h"
+#include "picloudbase.h"
 
 
-class PIP_CLOUD_EXPORT PICloudServer : public PIIODevice
+class PIP_CLOUD_EXPORT PICloudServer : public PIIODevice, private PICloudBase
 {
 	PIIODEVICE(PICloudServer)
 public:
@@ -45,6 +44,8 @@ public:
 		PICloudServer * server;
 	};
 
+	void setServerName(const PIString & server_name);
+
 	EVENT1(newConnection, PICloudServer::Client * , client)
 
 protected:
@@ -56,9 +57,7 @@ protected:
 private:
 	EVENT_HANDLER2(void, readed, uchar * , data, int, size);
 
-	PIEthernet eth;
 	PIVector<Client> clients;
-	PICloud::TCP tcp;
 };
 
 #endif // PICLOUDSERVER_H
diff --git a/libs/main/cloud/picloudtcp.h b/libs/main/cloud/picloudtcp.h
index 8f533ff6..ca492e2d 100644
--- a/libs/main/cloud/picloudtcp.h
+++ b/libs/main/cloud/picloudtcp.h
@@ -53,9 +53,12 @@ public:
 
 	TCP();
 	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 sendData(PIEthernet * eth, const PIByteArray & data);
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> parseHeader(PIByteArray & ba);
 	PIByteArray parseData(PIByteArray & ba);
 	PIString parseConnect(PIByteArray & ba);
diff --git a/main.cpp b/main.cpp
index 24975a80..92b40f6b 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,8 +4,11 @@
 int main(int argc, char * argv[]) {
 	PICLI cli(argc, argv);
 	cli.addArgument("connect", true);
+	cli.addArgument("name", true);
 	PICloudClient c("127.0.0.1:10101");
+//	c.setReopenEnabled(true);
 	PICloudServer s("127.0.0.1:10101");
+	if (cli.hasArgument("name")) s.setServerName(cli.argumentValue("name"));
 	if (cli.hasArgument("connect")) {
 		c.setServerName(cli.argumentValue("connect"));
 		c.startThreadedRead();
diff --git a/utils/cloud_dispatcher/cloudserver.cpp b/utils/cloud_dispatcher/cloudserver.cpp
index f114ea8c..80d27df4 100644
--- a/utils/cloud_dispatcher/cloudserver.cpp
+++ b/utils/cloud_dispatcher/cloudserver.cpp
@@ -20,11 +20,13 @@ PIString CloudServer::serverName() const {
 
 void CloudServer::addClient(DispatcherClient * c) {
 	clients << c;
+	index_clients.insert(c->clientId(), c);
 }
 
 
 void CloudServer::removeClient(DispatcherClient * c) {
 	clients.removeOne(c);
+	index_clients.removeOne(c->clientId());
 }
 
 
@@ -34,9 +36,11 @@ PIVector<DispatcherClient *> CloudServer::getClients() {
 
 
 void CloudServer::printStatus() {
-	piCout << "    " << "Clients for" << server->address() << ":";
+	piCout << "    " << "Clients for" << server->address() << server_name << ":";
 	for (auto c: clients) {
-		piCout << "        " << c->address();
+		piCout << "        " << c->address() << c->clientId();
 	}
+	for (auto c: clients) c->sendData(PIByteArray::fromHex("000000"));
+	server->sendData(PIByteArray::fromHex("000000"));
 }
 
diff --git a/utils/cloud_dispatcher/cloudserver.h b/utils/cloud_dispatcher/cloudserver.h
index 5a169bd5..8800e0bf 100644
--- a/utils/cloud_dispatcher/cloudserver.h
+++ b/utils/cloud_dispatcher/cloudserver.h
@@ -18,6 +18,7 @@ public:
 private:
 	DispatcherClient * server;
 	PIVector<DispatcherClient*> clients;
+	PIMap<uint, DispatcherClient*> index_clients;
 	PIString server_name;
 };
 
diff --git a/utils/cloud_dispatcher/dispatcherclient.cpp b/utils/cloud_dispatcher/dispatcherclient.cpp
index 1995c25a..e2a9ef48 100644
--- a/utils/cloud_dispatcher/dispatcherclient.cpp
+++ b/utils/cloud_dispatcher/dispatcherclient.cpp
@@ -2,7 +2,7 @@
 #include "picloudtcp.h"
 
 
-DispatcherClient::DispatcherClient(PIEthernet * eth_) : eth(eth_), authorised(false) {
+DispatcherClient::DispatcherClient(PIEthernet * eth_, int id) : eth(eth_), authorised(false), client_id(id) {
 	CONNECTU(&disconnect_tm, tickEvent, eth, close);
 	CONNECTU(eth, threadedReadEvent, this, readed);
 	CONNECTU(eth, disconnected, this, disconnected);
@@ -12,7 +12,7 @@ DispatcherClient::DispatcherClient(PIEthernet * eth_) : eth(eth_), authorised(fa
 
 void DispatcherClient::start() {
 	eth->startThreadedRead();
-	disconnect_tm.start(10000);
+	//disconnect_tm.start(10000);
 }
 
 
@@ -30,6 +30,16 @@ void DispatcherClient::close() {
 }
 
 
+void DispatcherClient::sendConnected() {
+	tcp.sendConnected(eth, client_id);
+}
+
+
+void DispatcherClient::sendData(const PIByteArray & data) {
+	tcp.sendData(eth, data);
+}
+
+
 void DispatcherClient::disconnected(bool withError) {
 	piCoutObj << "client disconnected" << eth->sendAddress();
 	disconnectEvent(this);
@@ -37,7 +47,7 @@ void DispatcherClient::disconnected(bool withError) {
 
 
 void DispatcherClient::readed(uchar *data, int size) {
-	piCout << size;
+//	piCout << size;
 	PIByteArray ba(data, size);
 	PIPair<PICloud::TCP::Type, PICloud::TCP::Role> hdr = tcp.parseHeader(ba);
 	if (hdr.first == PICloud::TCP::Invalid) {
@@ -61,6 +71,7 @@ void DispatcherClient::readed(uchar *data, int size) {
 	} else {
 		switch (hdr.first) {
 		case PICloud::TCP::Connect: {
+			tcp.setRole(hdr.second);
 			PIString sn = tcp.parseConnect(ba);
 			if (hdr.second == PICloud::TCP::Server) registerServer(sn, this);
 			if (hdr.second == PICloud::TCP::Client) registerClient(sn, this);
diff --git a/utils/cloud_dispatcher/dispatcherclient.h b/utils/cloud_dispatcher/dispatcherclient.h
index 22d3cce6..1584a6d8 100644
--- a/utils/cloud_dispatcher/dispatcherclient.h
+++ b/utils/cloud_dispatcher/dispatcherclient.h
@@ -8,14 +8,17 @@
 class DispatcherClient: public PIObject {
 	PIOBJECT(DispatcherClient)
 public:
-	DispatcherClient(PIEthernet * eth_);
-	void start();
+	DispatcherClient(PIEthernet * eth_, int id);
 	~DispatcherClient();
+	void start();
+	void close();
+	void sendConnected();
+	void sendData(const PIByteArray & data);
+	PIString address();
+	uint clientId() const {return client_id;}
 	EVENT1(disconnectEvent, DispatcherClient *, client)
 	EVENT2(registerServer, PIString, sname, DispatcherClient *, client)
 	EVENT2(registerClient, PIString, sname, DispatcherClient *, client)
-	PIString address();
-	void close();
 	EVENT1(dataReaded, PIByteArray, ba)
 
 private:
@@ -26,6 +29,7 @@ private:
 	PITimer disconnect_tm;
 	bool authorised;
 	PICloud::TCP tcp;
+	uint client_id;
 };
 
 
diff --git a/utils/cloud_dispatcher/dispatcherserver.cpp b/utils/cloud_dispatcher/dispatcherserver.cpp
index 702af9f9..eaf2c4bc 100644
--- a/utils/cloud_dispatcher/dispatcherserver.cpp
+++ b/utils/cloud_dispatcher/dispatcherserver.cpp
@@ -2,12 +2,15 @@
 
 
 DispatcherServer::DispatcherServer(PIEthernet::Address addr) : eth(PIEthernet::TCP_Server) {
+	client_gid = 0;
 	eth.setParameter(PIEthernet::ReuseAddress);
 	CONNECTU(&eth, newConnection, this, newConnection);
 	eth.listen(addr, true);
 	piCoutObj << "server started" << addr;
 	CONNECTU(&status_timer, tickEvent, this, printStatus);
+	CONNECTU(&timeout_timer, tickEvent, this, cleanClients);
 	status_timer.start(1000);
+	timeout_timer.start(5000);
 }
 
 
@@ -17,6 +20,26 @@ DispatcherServer::~DispatcherServer() {
 }
 
 
+void DispatcherServer::cleanClients() {
+	PIVector<DispatcherClient*> rm;
+	map_mutex.lock();
+	for (auto c: clients) {
+		if (!index_c_servers.contains(c) && !index_c_clients.contains(c)) {
+			if (rm_clients.contains(c)) rm << c;
+			else rm_clients << c;
+		} else rm_clients.removeAll(c);
+	}
+	for (auto c: rm_clients) {
+		if (clients.contains(c)) rm << c;
+	}
+	map_mutex.unlock();
+	for (auto c: rm) {
+		c->close();
+//		c->deleteLater();
+	}
+}
+
+
 void DispatcherServer::printStatus() {
 	map_mutex.lock();
 	piCout << PICoutManipulators::NewLine;
@@ -48,20 +71,25 @@ void  DispatcherServer::disconnectClient(DispatcherClient *client) {
 		for(auto csc : cscv) {
 			csc->close();
 			clients.removeOne(csc);
-			delete csc;
+			index_c_clients.removeOne(csc);
+			csc->deleteLater();
 		}
 		c_servers.remove(cs->serverName());
+		index_c_servers.removeOne(client);
 	}
 	CloudServer * cc = index_c_clients.value(client, nullptr);
-	if (cc) cc->removeClient(client);
+	if (cc) {
+		cc->removeClient(client);
+		index_c_clients.removeOne(client);
+	}
 	client->close();
 	map_mutex.unlock();
-	delete client;
+	client->deleteLater();
 }
 
 
 void DispatcherServer::newConnection(PIEthernet *cl) {
-	DispatcherClient * client = new DispatcherClient(cl);
+	DispatcherClient * client = new DispatcherClient(cl, client_gid++);
 	CONNECTU(client, disconnectEvent, this, disconnectClient);
 	CONNECTL(client, registerServer, [this](PIString sname, DispatcherClient * c){
 		map_mutex.lock();
@@ -78,6 +106,8 @@ void DispatcherServer::newConnection(PIEthernet *cl) {
 			piCoutObj << "add new Client to Server ->" << sname;
 			cs->addClient(c);
 			index_c_clients.insert(c, cs);
+		} else {
+			rm_clients << c;
 		}
 		map_mutex.unlock();
 	});
diff --git a/utils/cloud_dispatcher/dispatcherserver.h b/utils/cloud_dispatcher/dispatcherserver.h
index c4161aba..e1d6fa9a 100644
--- a/utils/cloud_dispatcher/dispatcherserver.h
+++ b/utils/cloud_dispatcher/dispatcherserver.h
@@ -14,14 +14,18 @@ public:
 private:
 	EVENT_HANDLER1(void, newConnection, PIEthernet * , cl);
 	EVENT_HANDLER1(void, disconnectClient, DispatcherClient *, client);
+	EVENT_HANDLER0(void, cleanClients);
 
 	PIEthernet eth;
 	PIVector<DispatcherClient*> clients;
 	PIMap<PIString, CloudServer *> c_servers;
 	PIMap<const DispatcherClient *, CloudServer *> index_c_servers;
 	PIMap<const DispatcherClient *, CloudServer *> index_c_clients;
+	PIVector<DispatcherClient*> rm_clients;
 	PITimer status_timer;
+	PITimer timeout_timer;
 	PIMutex map_mutex;
+	uint client_gid;
 };
 
 #endif // DISPATCHERSERVER_H