diff --git a/main/BleService.cpp b/main/BleService.cpp
index 2a5ccaf..2e77789 100644
--- a/main/BleService.cpp
+++ b/main/BleService.cpp
@@ -24,7 +24,7 @@ void BleService::start()
 	uint8_t wifi_mac[8];
 	esp_read_mac(wifi_mac, ESP_MAC_WIFI_STA);
 
-	sprintf(m_name, "WP_%02x%02x%02x", wifi_mac[3], wifi_mac[4], wifi_mac[5]);
+	sprintf(m_name, "WP_%s_%02x%02x%02x", SETTINGS.mqtt.device_id, wifi_mac[3], wifi_mac[4], wifi_mac[5]);
 
 	NimBLEDevice::init(m_name);
 	NimBLEDevice::setMTU(512);
@@ -73,7 +73,10 @@ void BleService::onWrite(NimBLECharacteristic* pCharacteristic)
 {
 	m_app.getCommandProcessor()->take();
 	char * buffer = m_app.getCommandProcessor()->process(pCharacteristic->getValue().c_str(), pCharacteristic->getDataLength());
-	pCharacteristic->setValue((uint8_t*)buffer, strlen(buffer));
-	pCharacteristic->notify();
+	if(buffer != nullptr && strlen(buffer) != 0)
+	{
+		pCharacteristic->setValue((uint8_t*)buffer, strlen(buffer));
+		pCharacteristic->notify();
+	}
 	m_app.getCommandProcessor()->give();
 }
diff --git a/main/BleService.h b/main/BleService.h
index 4e6e3c5..a625986 100644
--- a/main/BleService.h
+++ b/main/BleService.h
@@ -13,7 +13,7 @@ class BleService : public NimBLEServerCallbacks, NimBLECharacteristicCallbacks
 protected:
 	App & m_app;
 
-	char m_name[32];
+	char m_name[75];
 	
 	NimBLEServer * m_server = nullptr;
 	NimBLEService * m_service = nullptr;
diff --git a/main/CommandProcessor.cpp b/main/CommandProcessor.cpp
index ca090c6..5c4e50d 100644
--- a/main/CommandProcessor.cpp
+++ b/main/CommandProcessor.cpp
@@ -198,6 +198,34 @@ bool CommandProcessor::cmdSetTemperatureOffset(Parser & p, char * buffer)
 	return false;
 }
 
+bool CommandProcessor::cmdAuth(Parser & p, char * buffer)
+{
+	int value = 0;
+
+	if(strToInt(getElementAt(1, p, buffer), value))
+	{
+		if(value == 7856)
+		{
+			m_authenticated = true;
+			m_auth_time = millis();
+			ESP_LOGW(TAG, "Authenticated for 10s");
+			strcpy(m_buffer, "pin|ok");
+			return true;
+		}
+	}
+	return false;
+}
+
+bool CommandProcessor::cmdReadFullMac(Parser & p, char * buffer)
+{
+	uint8_t wifi_mac[8];
+	esp_read_mac(wifi_mac, ESP_MAC_WIFI_STA);
+	m_rw.reset();
+	m_rw.appendf("mac,%02x%02x%02x%02x%02x%02x", wifi_mac[0], wifi_mac[1], wifi_mac[2], wifi_mac[3], wifi_mac[4], wifi_mac[5]);
+	strcpy(m_buffer, m_rw.getBuffer());
+	return true;
+}
+
 #define COMMAND_START if(false){}
 #define COMMAND(command, function) else if(strcmp(command, getElementAt(0, p, temp)) == 0) function(p, temp)
 #define COMMAND_END else strcpy(m_buffer, "error");
@@ -209,7 +237,23 @@ char * CommandProcessor::process(const char * data, uint32_t len)
 	Parser p((char *)data, "|");
 	char temp[BUF_LEN];
 
+	if(strcmp("pin", getElementAt(0, p, temp)) == 0)
+	{
+		cmdAuth(p, temp);
+		return m_buffer;
+	}
+
+	if(millis() - m_auth_time > 10000)
+	{
+		ESP_LOGI(TAG, "nut autorized");
+		m_buffer[0] = 0;
+		return m_buffer;
+	}
+
+	m_auth_time = millis();
+
 	COMMAND_START
+	COMMAND("mac", cmdReadFullMac);
 	COMMAND("Z", cmdSetGroupId);
 	COMMAND("0", cmdSetMqttDevId);
 	COMMAND("-", cmdSetWorkingId);
@@ -222,5 +266,8 @@ char * CommandProcessor::process(const char * data, uint32_t len)
 	COMMAND("9", cmdSetTemperatureOffset);
 	COMMAND_END;
 
+	if(!m_authenticated)
+		m_buffer[0] = 0;
+
 	return m_buffer;
 }
\ No newline at end of file
diff --git a/main/CommandProcessor.h b/main/CommandProcessor.h
index f2e393e..111c6af 100644
--- a/main/CommandProcessor.h
+++ b/main/CommandProcessor.h
@@ -10,6 +10,8 @@ protected:
 	Mutex m_mutex;
 	ReaderWriter m_rw;
 	char m_buffer[512];
+	bool m_authenticated = false;
+	uint32_t m_auth_time = 0;
 
 public:
 	CommandProcessor(AppIF & app);
@@ -28,4 +30,6 @@ protected:
 	bool cmdReportAllSettings(Parser & p, char * buffer);
 	bool cmdSetTemperatureOffset(Parser & p, char * buffer);
 	bool cmdSetMqttDevId(Parser & p, char * buffer);
+	bool cmdAuth(Parser & p, char * buffer);
+	bool cmdReadFullMac(Parser & p, char * buffer);
 };
\ No newline at end of file
diff --git a/main/ProvisionSoftAP.h b/main/ProvisionSoftAP.h
index 6e0d822..b651474 100755
--- a/main/ProvisionSoftAP.h
+++ b/main/ProvisionSoftAP.h
@@ -15,7 +15,7 @@
 #include "ReaderWriter.h"
 #include "Settings.h"
 
-#define INACTIVE_TIMER	(2*60*1000*1000)
+#define INACTIVE_TIMER	(5*60*1000*1000)
 
 class ProvisionSoftAP
 {
diff --git a/main/Settings.cpp b/main/Settings.cpp
index 39f7b1f..78f75a0 100644
--- a/main/Settings.cpp
+++ b/main/Settings.cpp
@@ -95,5 +95,5 @@ void Settings::setDefaults()
 
 	m_data->sensors.temperature.temp_offset = 0;
 
-	strcpy(m_data->mqtt.device_id, "client1-authn-ID");
+	strcpy(m_data->mqtt.device_id, "0");
 }
\ No newline at end of file