diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp
index 9ba266d..e307828 100644
--- a/MMDVMHost.cpp
+++ b/MMDVMHost.cpp
@@ -64,16 +64,11 @@ static bool m_reload = false;
 extern CMQTTConnection* m_mqtt;
 
 #if !defined(_WIN32) && !defined(_WIN64)
-static void sigHandler1(int signum)
+static void sigHandler(int signum)
 {
 	m_killed = true;
 	m_signal = signum;
 }
-
-static void sigHandler2(int signum)
-{
-	m_reload = true;
-}
 #endif
 
 static CMMDVMHost* host = NULL;
@@ -102,16 +97,16 @@ int main(int argc, char** argv)
 	}
 
 #if !defined(_WIN32) && !defined(_WIN64)
-	::signal(SIGINT,  sigHandler1);
-	::signal(SIGTERM, sigHandler1);
-	::signal(SIGHUP,  sigHandler1);
-	::signal(SIGUSR1, sigHandler2);
+	::signal(SIGINT,  sigHandler);
+	::signal(SIGTERM, sigHandler);
+	::signal(SIGHUP,  sigHandler);
 #endif
 
 	int ret = 0;
 
 	do {
 		m_signal = 0;
+		m_killed = false;
 
 		host = new CMMDVMHost(std::string(iniFile));
 		ret = host->run();
@@ -120,6 +115,8 @@ int main(int argc, char** argv)
 		host = NULL;
 
 		switch (m_signal) {
+			case 0:
+				break;
 			case 2:
 				::LogInfo("MMDVMHost-%s exited on receipt of SIGINT", VERSION);
 				break;
@@ -127,16 +124,14 @@ int main(int argc, char** argv)
 				::LogInfo("MMDVMHost-%s exited on receipt of SIGTERM", VERSION);
 				break;
 			case 1:
-				::LogInfo("MMDVMHost-%s exited on receipt of SIGHUP", VERSION);
-				break;
-			case 10:
-				::LogInfo("MMDVMHost-%s is restarting on receipt of SIGUSR1", VERSION);
+				::LogInfo("MMDVMHost-%s is restarting on receipt of SIGHUP", VERSION);
+				m_reload = true;
 				break;
 			default:
 				::LogInfo("MMDVMHost-%s exited on receipt of an unknown signal", VERSION);
 				break;
 		}
-	} while (m_signal == 10);
+	} while (m_reload || (m_signal == 1));
 
 	::LogFinalise();
 
diff --git a/RemoteControl.cpp b/RemoteControl.cpp
index 3ce9dcb..87c31a5 100644
--- a/RemoteControl.cpp
+++ b/RemoteControl.cpp
@@ -256,16 +256,16 @@ unsigned int CRemoteControl::getArgCount() const
 #if defined(USE_M17)
 		case RCD_MODE_M17:
 #endif
-			return m_args.size() - SET_MODE_ARGS;
+			return (unsigned int)m_args.size() - SET_MODE_ARGS;
 #if defined(USE_POCSAG)
 		case RCD_PAGE:
 		case RCD_PAGE_BCD:
 		case RCD_PAGE_A1:
 		case RCD_PAGE_A2:
-			return m_args.size() - 1U;
+			return (unsigned int)m_args.size() - 1U;
 #endif
 		case RCD_CW:
-                        return m_args.size() - 1U;
+			return (unsigned int)m_args.size() - 1U;
 		default:
 			return 0U;
 	}
diff --git a/UDPSocket.cpp b/UDPSocket.cpp
index 49fab17..7bb258e 100644
--- a/UDPSocket.cpp
+++ b/UDPSocket.cpp
@@ -30,7 +30,11 @@
 CUDPSocket::CUDPSocket(const std::string& address, unsigned short port) :
 m_localAddress(address),
 m_localPort(port),
+#if defined(_WIN32) || defined(_WIN64)
+m_fd(INVALID_SOCKET),
+#else
 m_fd(-1),
+#endif
 m_af(AF_UNSPEC)
 {
 }
@@ -38,7 +42,11 @@ m_af(AF_UNSPEC)
 CUDPSocket::CUDPSocket(unsigned short port) :
 m_localAddress(),
 m_localPort(port),
+#if defined(_WIN32) || defined(_WIN64)
+m_fd(INVALID_SOCKET),
+#else
 m_fd(-1),
+#endif
 m_af(AF_UNSPEC)
 {
 }
@@ -91,7 +99,9 @@ int CUDPSocket::lookup(const std::string& hostname, unsigned short port, sockadd
 		return err;
 	}
 
-	::memcpy(&addr, res->ai_addr, address_length = res->ai_addrlen);
+	address_length = (unsigned int)res->ai_addrlen;
+
+	::memcpy(&addr, res->ai_addr, address_length);
 
 	::freeaddrinfo(res);
 
@@ -154,7 +164,11 @@ bool CUDPSocket::open(const sockaddr_storage& address)
 
 bool CUDPSocket::open()
 {
+#if defined(_WIN32) || defined(_WIN64)
+	assert(m_fd == INVALID_SOCKET);
+#else
 	assert(m_fd == -1);
+#endif
 
 	sockaddr_storage addr;
 	unsigned int addrlen;
@@ -215,7 +229,14 @@ int CUDPSocket::read(unsigned char* buffer, unsigned int length, sockaddr_storag
 {
 	assert(buffer != NULL);
 	assert(length > 0U);
-	assert(m_fd >= 0);
+
+#if defined(_WIN32) || defined(_WIN64)
+	if (m_fd == INVALID_SOCKET)
+		return 0;
+#else
+	if (m_fd == -1)
+		return 0;
+#endif
 
 	// Check that the readfrom() won't block
 	struct pollfd pfd;
@@ -276,7 +297,11 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
 {
 	assert(buffer != NULL);
 	assert(length > 0U);
+#if defined(_WIN32) || defined(_WIN64)
+	assert(m_fd != INVALID_SOCKET);
+#else
 	assert(m_fd >= 0);
+#endif
 
 	bool result = false;
 
@@ -307,13 +332,16 @@ bool CUDPSocket::write(const unsigned char* buffer, unsigned int length, const s
 
 void CUDPSocket::close()
 {
-	if (m_fd >= 0) {
 #if defined(_WIN32) || defined(_WIN64)
+	if (m_fd != INVALID_SOCKET) {
 		::closesocket(m_fd);
+		m_fd = INVALID_SOCKET;
+	}
 #else
+	if (m_fd >= 0) {
 		::close(m_fd);
-#endif
 		m_fd = -1;
 	}
+#endif
 }