diff --git a/SSU.cpp b/SSU.cpp
index 8d53fcb4..93eedb23 100644
--- a/SSU.cpp
+++ b/SSU.cpp
@@ -13,12 +13,13 @@ namespace transport
 
 	SSUServer::SSUServer (const boost::asio::ip::address & addr, int port):
 		m_OnlyV6(true), m_IsRunning(false),
-		m_Thread (nullptr), m_ThreadV6 (nullptr), m_ReceiversThread (nullptr),
-		m_Work (m_Service), m_WorkV6 (m_ServiceV6), m_ReceiversWork (m_ReceiversService), 
-		m_EndpointV6 (addr, port), 
-		m_Socket (m_ReceiversService, m_Endpoint), m_SocketV6 (m_ReceiversService), 
-		m_IntroducersUpdateTimer (m_Service), m_PeerTestsCleanupTimer (m_Service),
-		m_TerminationTimer (m_Service), m_TerminationTimerV6 (m_ServiceV6)	
+		m_Thread (nullptr), m_ThreadV6 (nullptr), m_ReceiversThread (nullptr), 
+		m_ReceiversThreadV6 (nullptr), m_Work (m_Service), m_WorkV6 (m_ServiceV6), 
+		m_ReceiversWork (m_ReceiversService), m_ReceiversWorkV6 (m_ReceiversServiceV6),
+		m_EndpointV6 (addr, port), m_Socket (m_ReceiversService, m_Endpoint), 
+		m_SocketV6 (m_ReceiversServiceV6), m_IntroducersUpdateTimer (m_Service), 
+		m_PeerTestsCleanupTimer (m_Service), m_TerminationTimer (m_Service), 
+		m_TerminationTimerV6 (m_ServiceV6)	
 	{
 		OpenSocketV6 ();
 	}
@@ -26,9 +27,10 @@ namespace transport
 	SSUServer::SSUServer (int port):
 		m_OnlyV6(false), m_IsRunning(false),
 		m_Thread (nullptr), m_ThreadV6 (nullptr), m_ReceiversThread (nullptr),
-		m_Work (m_Service), m_WorkV6 (m_ServiceV6), m_ReceiversWork (m_ReceiversService), 
+		m_ReceiversThreadV6 (nullptr), 	m_Work (m_Service), m_WorkV6 (m_ServiceV6), 
+		m_ReceiversWork (m_ReceiversService), m_ReceiversWorkV6 (m_ReceiversServiceV6),
 		m_Endpoint (boost::asio::ip::udp::v4 (), port), m_EndpointV6 (boost::asio::ip::udp::v6 (), port), 
-		m_Socket (m_ReceiversService), m_SocketV6 (m_ReceiversService), 
+		m_Socket (m_ReceiversService), m_SocketV6 (m_ReceiversServiceV6), 
 		m_IntroducersUpdateTimer (m_Service), m_PeerTestsCleanupTimer (m_Service),
 		m_TerminationTimer (m_Service), m_TerminationTimerV6 (m_ServiceV6)	
 	{
@@ -61,17 +63,18 @@ namespace transport
 	void SSUServer::Start ()
 	{
 		m_IsRunning = true;
-		m_ReceiversThread = new std::thread (std::bind (&SSUServer::RunReceivers, this));
 		if (!m_OnlyV6)
 		{
+			m_ReceiversThread = new std::thread (std::bind (&SSUServer::RunReceivers, this));
 			m_Thread = new std::thread (std::bind (&SSUServer::Run, this));
 			m_ReceiversService.post (std::bind (&SSUServer::Receive, this));
 			ScheduleTermination ();		
 		}
 		if (context.SupportsV6 ())
 		{	
+			m_ReceiversThreadV6 = new std::thread (std::bind (&SSUServer::RunReceiversV6, this));
 			m_ThreadV6 = new std::thread (std::bind (&SSUServer::RunV6, this));
-			m_ReceiversService.post (std::bind (&SSUServer::ReceiveV6, this));	
+			m_ReceiversServiceV6.post (std::bind (&SSUServer::ReceiveV6, this));	
 			ScheduleTerminationV6 ();	
 		}
 		SchedulePeerTestsCleanupTimer ();	
@@ -89,6 +92,7 @@ namespace transport
 		m_ServiceV6.stop ();
 		m_SocketV6.close ();
 		m_ReceiversService.stop ();
+		m_ReceiversServiceV6.stop ();
 		if (m_ReceiversThread)
 		{	
 			m_ReceiversThread->join (); 
@@ -101,6 +105,12 @@ namespace transport
 			delete m_Thread;
 			m_Thread = nullptr;
 		}
+		if (m_ReceiversThreadV6)
+		{	
+			m_ReceiversThreadV6->join (); 
+			delete m_ReceiversThreadV6;
+			m_ReceiversThreadV6 = nullptr;
+		}
 		if (m_ThreadV6)
 		{	
 			m_ThreadV6->join (); 
@@ -154,6 +164,21 @@ namespace transport
 		}	
 	}	
 	
+	void SSUServer::RunReceiversV6 () 
+	{ 
+		while (m_IsRunning)
+		{
+			try
+			{	
+				m_ReceiversServiceV6.run ();
+			}
+			catch (std::exception& ex)
+			{
+				LogPrint (eLogError, "SSU: v6 receivers runtime exception: ", ex.what ());
+			}	
+		}	
+	}	
+
 	void SSUServer::AddRelay (uint32_t tag, std::shared_ptr<SSUSession> relay)
 	{
 		m_Relays[tag] = relay;
diff --git a/SSU.h b/SSU.h
index 44dab63b..c9881fd0 100644
--- a/SSU.h
+++ b/SSU.h
@@ -26,7 +26,7 @@ namespace transport
 	const int SSU_TERMINATION_CHECK_TIMEOUT = 30; // 30 seconds
 	const size_t SSU_MAX_NUM_INTRODUCERS = 3;
 	const size_t SSU_SOCKET_RECEIVE_BUFFER_SIZE = 0x1FFFF; // 128K
-	const size_t SSU_SOCKET_SEND_BUFFER_SIZE = 0xFFFF; // 64K
+	const size_t SSU_SOCKET_SEND_BUFFER_SIZE = 0x1FFFF; // 128K
 
 	struct SSUPacket
 	{
@@ -76,6 +76,7 @@ namespace transport
 			void Run ();
 			void RunV6 ();
 			void RunReceivers ();
+			void RunReceiversV6 ();
 			void Receive ();
 			void ReceiveV6 ();
 			void HandleReceivedFrom (const boost::system::error_code& ecode, std::size_t bytes_transferred, SSUPacket * packet);
@@ -113,9 +114,9 @@ namespace transport
 			
 			bool m_OnlyV6;			
 			bool m_IsRunning;
-			std::thread * m_Thread, * m_ThreadV6, * m_ReceiversThread;	
-			boost::asio::io_service m_Service, m_ServiceV6, m_ReceiversService;
-			boost::asio::io_service::work m_Work, m_WorkV6, m_ReceiversWork;
+			std::thread * m_Thread, * m_ThreadV6, * m_ReceiversThread, * m_ReceiversThreadV6;	
+			boost::asio::io_service m_Service, m_ServiceV6, m_ReceiversService, m_ReceiversServiceV6;
+			boost::asio::io_service::work m_Work, m_WorkV6, m_ReceiversWork, m_ReceiversWorkV6;
 			boost::asio::ip::udp::endpoint m_Endpoint, m_EndpointV6;
 			boost::asio::ip::udp::socket m_Socket, m_SocketV6;
 			boost::asio::deadline_timer m_IntroducersUpdateTimer, m_PeerTestsCleanupTimer,