diff --git a/DMRDirectNetwork.cpp b/DMRDirectNetwork.cpp
index a378f7a..a27a646 100644
--- a/DMRDirectNetwork.cpp
+++ b/DMRDirectNetwork.cpp
@@ -321,11 +321,11 @@ bool CDMRDirectNetwork::isConnected() const
 	return (m_status == RUNNING);
 }
 
-void CDMRDirectNetwork::close()
+void CDMRDirectNetwork::close(bool sayGoodbye)
 {
 	LogMessage("Closing DMR Network");
 
-	if (m_status == RUNNING) {
+	if (sayGoodbye && (m_status == RUNNING)) {
 		unsigned char buffer[9U];
 		::memcpy(buffer + 0U, "RPTCL", 5U);
 		::memcpy(buffer + 5U, m_id, 4U);
@@ -377,7 +377,7 @@ void CDMRDirectNetwork::clock(unsigned int ms)
 	int length = m_socket.read(m_buffer, BUFFER_LENGTH, address, addrlen);
 	if (length < 0) {
 		LogError("DMR, Socket has failed, retrying connection to the master");
-		close();
+		close(false);
 		open();
 		return;
 	}
@@ -408,7 +408,7 @@ void CDMRDirectNetwork::clock(unsigned int ms)
 				   the Network sometimes times out and reaches here.
 				   We want it to reconnect so... */
 				LogError("DMR, Login to the master has failed, retrying network ...");
-				close();
+				close(false);
 				open();
 				return;
 			}
@@ -452,7 +452,7 @@ void CDMRDirectNetwork::clock(unsigned int ms)
 			}
 		} else if (::memcmp(m_buffer, "MSTCL", 5U) == 0) {
 			LogError("DMR, Master is closing down");
-			close();
+			close(false);
 			open();
 		} else if (::memcmp(m_buffer, "MSTPONG", 7U) == 0) {
 			m_timeoutTimer.start();
@@ -466,7 +466,7 @@ void CDMRDirectNetwork::clock(unsigned int ms)
 	m_timeoutTimer.clock(ms);
 	if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired()) {
 		LogError("DMR, Connection to the master has timed out, retrying connection");
-		close();
+		close(false);
 		open();
 	}
 }
@@ -635,7 +635,7 @@ bool CDMRDirectNetwork::write(const unsigned char* data, unsigned int length)
 	bool ret = m_socket.write(data, length, m_addr, m_addrLen);
 	if (!ret) {
 		LogError("DMR, Socket has failed when writing data to the master, retrying connection");
-		m_socket.close();
+		close(false);
 		open();
 		return false;
 	}
diff --git a/DMRDirectNetwork.h b/DMRDirectNetwork.h
index f6e0834..6df82cc 100644
--- a/DMRDirectNetwork.h
+++ b/DMRDirectNetwork.h
@@ -57,7 +57,7 @@ public:
 
 	virtual bool isConnected() const;
 
-	virtual void close();
+	virtual void close(bool sayGoodbye);
 
 private:
 	std::string      m_address;
diff --git a/DMRGatewayNetwork.cpp b/DMRGatewayNetwork.cpp
index dd86e76..f6dfe47 100644
--- a/DMRGatewayNetwork.cpp
+++ b/DMRGatewayNetwork.cpp
@@ -289,10 +289,10 @@ bool CDMRGatewayNetwork::writeTalkerAlias(unsigned int id, unsigned char type, c
 
 bool CDMRGatewayNetwork::isConnected() const
 {
-	return (m_enabled && (m_addrLen != 0));
+	return (m_addrLen != 0);
 }
 
-void CDMRGatewayNetwork::close()
+void CDMRGatewayNetwork::close(bool sayGoodbye)
 {
 	LogMessage("DMR, Closing DMR Network");
 
diff --git a/DMRGatewayNetwork.h b/DMRGatewayNetwork.h
index bc00385..7bca94f 100644
--- a/DMRGatewayNetwork.h
+++ b/DMRGatewayNetwork.h
@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2015,2016,2017,2018,2020 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2015,2016,2017,2018,2020,2021 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -58,7 +58,7 @@ public:
 
 	virtual bool isConnected() const;
 
-	virtual void close();
+	virtual void close(bool sayGoodbye);
 
 private: 
 	std::string      m_addressStr;
diff --git a/DMRNetwork.h b/DMRNetwork.h
index 4a3c4d7..006e097 100644
--- a/DMRNetwork.h
+++ b/DMRNetwork.h
@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2015,2016,2017,2018,2020 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2015,2016,2017,2018,2020,2021 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -50,7 +50,7 @@ public:
 
 	virtual bool isConnected() const = 0;
 
-	virtual void close() = 0;
+	virtual void close(bool sayGoodbye) = 0;
 
 private: 
 };
diff --git a/DStarNetwork.cpp b/DStarNetwork.cpp
index 2de9051..eae4f8f 100644
--- a/DStarNetwork.cpp
+++ b/DStarNetwork.cpp
@@ -316,7 +316,7 @@ void CDStarNetwork::reset()
 
 bool CDStarNetwork::isConnected() const
 {
-	return (m_enabled && (m_addrLen != 0));
+	return (m_addrLen != 0);
 }
 
 void CDStarNetwork::close()
diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp
index b21870a..966bf76 100644
--- a/MMDVMHost.cpp
+++ b/MMDVMHost.cpp
@@ -1260,7 +1260,7 @@ int CMMDVMHost::run()
 	}
 
 	if (m_dmrNetwork != NULL) {
-		m_dmrNetwork->close();
+		m_dmrNetwork->close(true);
 		delete m_dmrNetwork;
 	}
 
diff --git a/NXDNIcomNetwork.cpp b/NXDNIcomNetwork.cpp
index 5f20b37..730f445 100644
--- a/NXDNIcomNetwork.cpp
+++ b/NXDNIcomNetwork.cpp
@@ -155,7 +155,7 @@ void CNXDNIcomNetwork::reset()
 
 bool CNXDNIcomNetwork::isConnected() const
 {
-	return (m_enabled && (m_addrLen != 0));
+	return (m_addrLen != 0);
 }
 
 void CNXDNIcomNetwork::close()
diff --git a/NXDNKenwoodNetwork.cpp b/NXDNKenwoodNetwork.cpp
index 3866133..bed3316 100644
--- a/NXDNKenwoodNetwork.cpp
+++ b/NXDNKenwoodNetwork.cpp
@@ -837,7 +837,7 @@ void CNXDNKenwoodNetwork::reset()
 
 bool CNXDNKenwoodNetwork::isConnected() const
 {
-	return (m_enabled && (m_rtcpAddrLen != 0U) && (m_rtpAddrLen != 0U));
+	return ((m_rtcpAddrLen != 0U) && (m_rtpAddrLen != 0U));
 }
 
 void CNXDNKenwoodNetwork::close()
diff --git a/P25Network.cpp b/P25Network.cpp
index 2734373..77a9a7d 100644
--- a/P25Network.cpp
+++ b/P25Network.cpp
@@ -426,7 +426,7 @@ unsigned int CP25Network::read(unsigned char* data, unsigned int length)
 
 bool CP25Network::isConnected() const
 {
-	return (m_enabled && (m_addrLen != 0));
+	return (m_addrLen != 0);
 }
 
 void CP25Network::close()
diff --git a/UDPSocket.cpp b/UDPSocket.cpp
index ad8a0eb..7b819fe 100644
--- a/UDPSocket.cpp
+++ b/UDPSocket.cpp
@@ -188,6 +188,8 @@ bool CUDPSocket::open(const unsigned int index, const unsigned int af, const std
 		return false;
 	}
 
+	close(index);
+
 	int fd = ::socket(addr.ss_family, SOCK_DGRAM, 0);
 	if (fd < 0) {
 #if defined(_WIN32) || defined(_WIN64)
@@ -344,13 +346,13 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
 
 void CUDPSocket::close()
 {
-	for (int i = 0; i < UDP_SOCKET_MAX; i++)
-		close(m_fd[i]);
+	for (unsigned int i = 0; i < UDP_SOCKET_MAX; i++)
+		close(i);
 }
 
 void CUDPSocket::close(const unsigned int index)
 {
- 	if (m_fd[index] >= 0) {
+	if ((index < UDP_SOCKET_MAX) && (m_fd[index] >= 0)) {
 #if defined(_WIN32) || defined(_WIN64)
 		::closesocket(m_fd[index]);
 #else
diff --git a/Version.h b/Version.h
index 9aea486..486d545 100644
--- a/Version.h
+++ b/Version.h
@@ -19,6 +19,6 @@
 #if !defined(VERSION_H)
 #define	VERSION_H
 
-const char* VERSION = "20210407";
+const char* VERSION = "20210408";
 
 #endif