diff --git a/lighthub/config.cpp b/lighthub/config.cpp
index a18adf1..db677ae 100644
--- a/lighthub/config.cpp
+++ b/lighthub/config.cpp
@@ -4,11 +4,12 @@
 bool             systemConfig::isValidSysConf()
 {    
      if (!stream) return false; 
-     stream->open('r');
+     openStream('r');
      stream->seek(offsetof(systemConfigData,signature));
      for (int i=0;i<sizeof(systemConfigData::signature);i++)
         if (stream->read()!=EEPROM_signature[i])
                       {
+                       stream->close();  
                        return false;
                        } 
     return true;                   
@@ -18,7 +19,7 @@ bool             systemConfig::isValidSysConf()
   bool             systemConfig::getMAC()
  { 
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,mac));
 
     bool isMacValid = false; 
@@ -26,26 +27,28 @@ bool             systemConfig::isValidSysConf()
         mac[i] = stream->read();
         if (mac[i] != 0 && mac[i] != 0xff) isMacValid = true;
     }
+   stream->close();  
    return isMacValid;
  }
  
   bool             systemConfig::setMAC(macAddress& _mac)
  {
    if (!stream || !isValidSysConf()) return false;    
-   stream->open('w');
+   openStream('w');
    stream->seek(offsetof(systemConfigData,mac));
    stream->write ((const uint8_t *)&_mac,sizeof(_mac));
    memcpy(mac, _mac, sizeof(mac));
-   stream->flush();
+   stream->close();
   return true;
  }
 
   char *             systemConfig::getMQTTpwd(char * buffer, uint16_t bufLen)
  {
     if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,MQTTpwd));   
-     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -57,11 +60,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setMQTTpwd(char * pwd)
  {
     if (!stream || !isValidSysConf() || (strlen(pwd)>=sizeof(systemConfigData::MQTTpwd))) return false;
-    stream->open('w'); 
+    openStream('w'); 
     stream->seek(offsetof(systemConfigData,MQTTpwd));   
     stream->print(pwd); 
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
 
@@ -69,9 +72,10 @@ bool             systemConfig::isValidSysConf()
   char *             systemConfig::getOTApwd(char * buffer, uint16_t bufLen)
  {
     if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,OTApwd));   
     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -83,11 +87,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setOTApwd(char * pwd)
  {
      if (!stream || !isValidSysConf() || (strlen(pwd)>=sizeof(systemConfigData::OTApwd))) return false; 
-    stream->open('w'); 
+    openStream('w'); 
     stream->seek(offsetof(systemConfigData,OTApwd));   
     stream->print(pwd);   
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
  
@@ -95,9 +99,10 @@ bool             systemConfig::isValidSysConf()
   char *          systemConfig::getServer(char * buffer, uint16_t bufLen)
  {
   if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,configURL));   
     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -109,11 +114,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setServer(char* url)
  {
   if (!stream || !isValidSysConf() || (strlen(url)>=sizeof(systemConfigData::configURL))) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(offsetof(systemConfigData,configURL));   
     stream->print(url);   
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
   
@@ -122,10 +127,11 @@ bool             systemConfig::isValidSysConf()
  {
     uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,ip));   
     stream->readBytes((uint8_t *) &addr,4);
     ip=addr;
+    stream->close(); 
     return (ip[0] && ((ip[0] != 0xff) || (ip[1] != 0xff) || (ip[2] != 0xff) || (ip[3] != 0xff)));
  }
  
@@ -133,30 +139,33 @@ bool             systemConfig::isValidSysConf()
  {
      uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,mask));   
     stream->readBytes((uint8_t *) &addr,4);
     mask=addr;
+    stream->close(); 
     return (mask[0] && ((mask[0] != 0xff) || (mask[1] != 0xff) || (mask[2] != 0xff) || (mask[3] != 0xff)));
  }
  
  bool             systemConfig::getDNS(IPAddress& dns)
  {   uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,dns));   
     stream->readBytes((uint8_t *) &addr,4);
     dns = addr;
+    stream->close(); 
     return (dns[0] && ((dns[0] != 0xff) || (dns[1] != 0xff) || (dns[2] != 0xff) || (dns[3] != 0xff)));
  }
  
  bool             systemConfig::getGW(IPAddress& gw)
  {   uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,gw));   
     stream->readBytes((uint8_t *) &addr,4);
     gw=addr;
+    stream->close(); 
     return (gw[0] && ((gw[0] != 0xff) || (gw[1] != 0xff) || (gw[2] != 0xff) || (gw[3] != 0xff)));  
 }
  
@@ -164,30 +173,30 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setIP(IPAddress& ip)
  {  uint32_t addr=ip;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,ip));
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;      
  }
  
  bool             systemConfig::setMask(IPAddress& mask)
  {  uint32_t addr = mask;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(offsetof(systemConfigData,mask));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;    
  }
  
  bool             systemConfig::setDNS(IPAddress& dns)
  {  uint32_t addr = dns;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(offsetof(systemConfigData,dns));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;   
 
  }
@@ -195,10 +204,10 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setGW(IPAddress& gw)
  { uint32_t addr = gw;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(offsetof(systemConfigData,gw));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;   
  }
  
@@ -206,7 +215,7 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::clear()
  {
    if (!stream) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(0);
      for (unsigned int i = 0; i < stream->getSize(); i++) {
         stream->write((uint8_t)'\0');
@@ -214,7 +223,7 @@ bool             systemConfig::isValidSysConf()
      stream->seek(offsetof(systemConfigData,signature));
      for (unsigned int i=0;i<sizeof(systemConfigData::signature);i++)
         if (stream->write(EEPROM_signature[i]));
-    stream->flush();
+    stream->close();
     return true;
  }
  
diff --git a/lighthub/config.h b/lighthub/config.h
index a861ad9..0dd9800 100644
--- a/lighthub/config.h
+++ b/lighthub/config.h
@@ -16,6 +16,7 @@ const char EEPROM_signature[] = EEPROM_SIGNATURE;
 #define SYSCONF_OFFSET 0
 
 #define EEPROM_offset_NotAlligned SYSCONF_OFFSET+sizeof(systemConfigData)
+#define SYSCONF_SIZE EEPROM_offsetJSON
 #define EEPROM_offsetJSON EEPROM_offset_NotAlligned + (4 -(EEPROM_offset_NotAlligned & 3))
 //#define EEPROM_offsetJSON IFLASH_PAGE_SIZE
 #define EEPROM_FIX_PART_LEN EEPROM_offsetJSON-SYSCONF_OFFSET
@@ -57,6 +58,15 @@ const char EEPROM_signature[] = EEPROM_SIGNATURE;
 class systemConfig {
  private:
  flashStream * stream;
+ int openStream(char mode = '\0') 
+      {
+            #if defined(FS_STORAGE)
+            stream.open("/config.bin",mode);
+            #else
+            stream.open(EEPROM_offsetJSON,mode);
+            #endif
+        };
+
  public:  
  macAddress mac;
  systemConfig() {stream=NULL;};
diff --git a/lighthub/flashstream.h b/lighthub/flashstream.h
index de76770..d538594 100644
--- a/lighthub/flashstream.h
+++ b/lighthub/flashstream.h
@@ -44,21 +44,25 @@ extern NRFFlashStorage EEPROM;
 class seekableStream : public Stream 
 {
 protected:    
-unsigned int streamSize;       
+unsigned int streamSize;  
+bool textMode;
+
 public:
 seekableStream(unsigned int size):Stream(),streamSize(size) {};
 unsigned int getSize() {return streamSize;}
 virtual unsigned int seek(unsigned int _pos = 0) = 0;
+virtual int  open(unsigned int _startPos=0, unsigned int _size=4096, char mode='\0') = 0;
+virtual int  open(String _filename, char mode='\0') = 0; 
+virtual void close() = 0;
 };
 
 #if defined(FS_STORAGE)
 class flashStream : public seekableStream
 {
 private:
- File fs;
- String filename;
- char openedMode;
-
+String       filename; 
+char         openedMode; 
+File         fs;
 public:
 flashStream(String _filename):seekableStream(65535) 
             {
@@ -66,8 +70,12 @@ flashStream(String _filename):seekableStream(65535)
                 openedMode='\0';
                 open('r');
             } 
-
-   int open(char mode='\0') 
+   virtual int open(String _filename, char mode='\0') 
+   {
+       textMode = _filename suffix == txt or json
+       open file
+   }; 
+   virtual int open(char mode='\0') 
             {   
                if (!mode  && openedMode) mode=openedMode;
                if (!mode  && !openedMode) mode='r'; 
@@ -97,7 +105,7 @@ flashStream(String _filename):seekableStream(65535)
    virtual int read() {open('r');return fs.read();};
    virtual int peek() {open('r'); return fs.peek();};
    virtual unsigned int seek(unsigned int _pos = 0){return open();fs.seek(_pos,SeekSet);};         
-   virtual void flush() {fs.flush(); open('r'); };
+   virtual void close() {fs.flush(); open('r'); };
    virtual size_t write(uint8_t ch) {open('w'); return fs.write(ch);};
    using Print::write;
    void putEOF(){write (255);};
@@ -117,15 +125,44 @@ unsigned int startPos;
 public:
 flashStream(unsigned int _startPos=0, unsigned int _size=4096 ):seekableStream(_size) 
             {
-            pos = _startPos; startPos = _startPos; 
+            pos = 0; startPos = _startPos; 
 
             };
 
     void setSize(unsigned int _size) {streamSize=_size;}; 
-    int  open(bool write=false) {return 1;};       
+
+    virtual int open(String _filename, char mode='\0') 
+                {
+                  if (_filename == "config.json")
+                    {
+                        pos = 0;
+                        streamSize = _size;  
+                        startPos = EEPROM_offsetJSON;
+                        textMode = true;
+
+                        return 1;    
+                    }
+                  else if (_filename == "config.bin")
+                    {
+                        pos = 0;
+                        startPos = SYSCONF_OFFSET;
+                        streamSize = SYSCONF_SIZE;
+                        textMode =false;
+                        return 1;
+                    }
+                  else return 0;    
+                };
+
+    virtual int  open(unsigned int _startPos=0, unsigned int _size=4096 char mode='\0') 
+            {
+                pos = 0;
+                startPos = _startPos;
+                streamSize = _size;
+                return 1;
+            };       
 
     virtual unsigned int seek(unsigned int _pos = 0) 
-        {   pos=min(startPos+_pos, startPos+streamSize);
+        {   pos=min(_pos, streamSize);
             debugSerial<<F("Seek:")<<pos<<endl;
             return pos;
         };
@@ -158,12 +195,12 @@ flashStream(unsigned int _startPos=0, unsigned int _size=4096 ):seekableStream(_
             {
                 //debugSerial<<">"<<(char)ch;
                #if defined(__AVR__)
-                  EEPROM.update(pos++,(char)ch);
+                  EEPROM.update(startPos+pos++,(char)ch);
                   return 1;
                #elif  defined(__SAM3X8E__)
-                  return EEPROM.write(pos++,(char)ch);
+                  return EEPROM.write(startPos+pos++,(char)ch);
                #else 
-                  EEPROM.write(pos++,(char)ch);
+                  EEPROM.write(startPos+pos++,(char)ch);
                   return 1;  
                #endif   
 
@@ -180,7 +217,7 @@ flashStream(unsigned int _startPos=0, unsigned int _size=4096 ):seekableStream(_
    virtual size_t write(const uint8_t *buffer, size_t size) override
             {     
                   //debugSerial<<("Write from:")<<pos<<" "<<size<<" bytes"<<endl;    
-                  EEPROM.write(pos,(byte*)buffer,size);
+                  EEPROM.write(startPos+pos,(byte*)buffer,size);
                   pos+=size;
                 return size;          
             };
diff --git a/lighthub/item.cpp b/lighthub/item.cpp
index 775a0f5..6fc83a7 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -410,7 +410,7 @@ void Item::setExt(long int par)  // Only store if VAL is int (autogenerated or c
 {
     if (!itemExt)
     {
-    for (int i = aJson.getArraySize(itemArr); i <= 4; i++)
+    for (int i = aJson.getArraySize(itemArr); i <= I_EXT; i++)
         aJson.addItemToArray(itemArr, itemExt=aJson.createNull());// Item((long int)0));
     //itemExt = aJson.getArrayItem(itemArr, I_EXT);
       };
@@ -688,8 +688,8 @@ int Item::Ctrl(itemCmd cmd,  char* subItem, bool allowRecursion)
     /// DELAYED COMMANDS processing
      if (suffixCode == S_DELAYED)
         {
-                for (int i = aJson.getArraySize(itemArr); i < I_TIMESTAMP+1; i++)
-                            aJson.addItemToArray(itemArr, aJson.createItem( (long int) 0));
+                for (int i = aJson.getArraySize(itemArr); i <= I_TIMESTAMP; i++)
+                            aJson.addItemToArray(itemArr, aJson.createNull());
             
                 aJsonObject *timestampObj = aJson.getArrayItem(itemArr, I_TIMESTAMP);
                 if (timestampObj && cmd.getCmd()<=0xf)
@@ -697,6 +697,7 @@ int Item::Ctrl(itemCmd cmd,  char* subItem, bool allowRecursion)
                    if (cmd.getInt()>0)       
                     {
                         timestampObj->valueint = millis()+cmd.getInt();
+                        timestampObj->type = aJson_Int;
                         timestampObj->subtype=cmd.getCmd();
                         debugSerial<<F( "Armed for ")<< cmd.getInt() << F(" ms :")<<timestampObj->valueint<<endl;
                     }
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 1296bb3..75f6543 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -48,6 +48,7 @@ Streamlog errorSerial(&debugSerialPort,LOG_ERROR, ledRED);
 Streamlog infoSerial (&debugSerialPort,LOG_INFO);
 #endif
 
+/*
 #if defined(FS_STORAGE)
 flashStream sysConfStream("/config.bin"); 
 flashStream JSONStream("/config.json"); 
@@ -55,6 +56,9 @@ flashStream JSONStream("/config.json");
 flashStream sysConfStream(SYSCONF_OFFSET,EEPROM_offsetJSON); 
 flashStream JSONStream(EEPROM_offsetJSON,MAX_JSON_CONF_SIZE); 
 #endif
+*/
+
+flashStream sysConfStream();
 
 systemConfig sysConf(&sysConfStream);
 
@@ -257,6 +261,8 @@ int httpHandler(Client& client, String request, long contentLength, bool authori
 
          itemCmd ic;
          ic.loadItem(&item,SEND_COMMAND|SEND_PARAMETERS);
+         if (item.itemType == CH_GROUP)
+           {if (item.isActive()) item.setCmd(CMD_ON); else item.setCmd(CMD_OFF);} 
          char buf[32];
          response=ic.toString(buf, sizeof(buf));
         
@@ -270,7 +276,7 @@ int httpHandler(Client& client, String request, long contentLength, bool authori
         request+=body;
 
         debugSerial<<F("Cmd: ")<<request<<endl;
-        if (request=="reboot") client.stop();
+        if (request=="reboot ") client.stop();
         const char* res=request.c_str();
         cmd_parse((char*) res);        
         } 
@@ -408,7 +414,7 @@ if (element && element->type == aJson_String) return element->valuestring;
                         }
 
             debugSerial<<passwordBuf<<endl;            
-            ArduinoOTA.begin(Ethernet.localIP(), "Lighthub", passwordBuf, InternalStorage, sysConfStream, JSONStream);
+            ArduinoOTA.begin(Ethernet.localIP(), "Lighthub", passwordBuf, InternalStorage, sysConfStream);//, JSONStream);
             ArduinoOTA.setCustomHandler(httpHandler);
             infoSerial<<F("OTA initialized\n");
 
@@ -518,7 +524,12 @@ lan_status lanLoop() {
         case IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER:
             wdt_res();
             statusLED.set(ledRED|ledGREEN|((configLoaded)?ledBLINK:0));
-            ip_ready_config_loaded_connecting_to_broker();
+            if (!mqttArr || ((aJson.getArraySize(mqttArr)) < 2)) 
+                {
+                infoSerial<<F("No MQTT configured")<<endl;    
+                lanStatus=OPERATION_NO_MQTT;
+                } 
+            else ip_ready_config_loaded_connecting_to_broker();
             break;
 
         case RETAINING_COLLECTING:
@@ -579,7 +590,9 @@ lan_status lanLoop() {
             }
             break;
 
-        case DO_NOTHING:;
+        case DO_NOTHING:
+        case OPERATION_NO_MQTT:
+        ;
     }
 
 
@@ -614,7 +627,7 @@ lan_status lanLoop() {
 
                 case DHCP_CHECK_REBIND_FAIL:
                     errorSerial<<F("Error: rebind fail")<<endl;
-                    if (mqttClient.connected()) mqttClient.disconnect();
+              ///      if (mqttClient.connected()) mqttClient.disconnect(); ??
                     //timerLanCheckTime = millis();// + 1000;
                     lanStatus = DO_REINIT;
                     break;
@@ -1220,14 +1233,21 @@ int loadConfigFromEEPROM()
 {
     char ch;
     infoSerial<<F("Loading Config from EEPROM")<<endl;
-    JSONStream.open('r');
-    JSONStream.seek();    
+    #if defined(FS_STORAGE)
+    sysConfStream.open("/config.json",'r');
+    #else
+    sysConfStream.open(EEPROM_offsetJSON,'r');
+    #endif
+
+    //JSONStream.seek();    
     if (JSONStream.peek() == '{') {
         aJsonStream as = aJsonStream(&JSONStream);
         cleanConf();
         root = aJson.parse(&as);
+        sysConfStream.close();
         if (!root) {
             errorSerial<<F("load failed")<<endl;
+        //    sysConfStream.close();
             return 0;
         }
         infoSerial<<F("Loaded")<<endl;
@@ -1235,8 +1255,9 @@ int loadConfigFromEEPROM()
         ethClient.stop(); //Refresh MQTT connect to get retained info
         return 1;
     } else {
-        JSONStream.write(255); //truncate garbage
+        JSONStream.writeEOF(); //truncate garbage
         infoSerial<<F("No stored config")<<endl;
+        sysConfStream.close();
         return 0;
     }
     return 0;
@@ -1251,10 +1272,17 @@ if (arg_cnt>1)
     infoSerial<<F("Config autosave:")<<sysConf.getSaveSuccedConfig()<<endl;
     return;
 }
+    #if defined(FS_STORAGE)
+    sysConfStream.open("/config.json",'w');
+    #else
+    sysConfStream.open(EEPROM_offsetJSON,'w');
+    #endif
+
 #if defined(__SAM3X8E__) 
   char* outBuf = (char*) malloc(MAX_JSON_CONF_SIZE); /* XXX: Dynamic size. */
   if (outBuf == NULL)
     {
+      sysConfStream.close();  
       return;
     }
   infoSerial<<F("Saving config to EEPROM..")<<endl;
@@ -1267,13 +1295,13 @@ if (arg_cnt>1)
   free (outBuf);
   infoSerial<<res<< F("bytes from ")<<len<<F(" are saved to EEPROM")<<endl;
 #else
-    JSONStream.open('w');
-    JSONStream.seek();
+    //JSONStream.open('w');
+    //JSONStream.seek();
     aJsonStream jsonEEPROMStream = aJsonStream(&JSONStream);
     infoSerial<<F("Saving config to EEPROM..");
     aJson.print(root, &jsonEEPROMStream);
     JSONStream.putEOF();
-    JSONStream.flush();
+    JSONStream.close();
     infoSerial<<F("Saved to EEPROM")<<endl;
 #endif
 }
diff --git a/lighthub/main.h b/lighthub/main.h
index d77544c..f1cb0e0 100644
--- a/lighthub/main.h
+++ b/lighthub/main.h
@@ -207,6 +207,7 @@ enum lan_status {
     IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER = 4,
     RETAINING_COLLECTING = 5,
     OPERATION = 6,
+    OPERATION_NO_MQTT = 7,
 
     DO_REINIT = -10,
     REINIT = - 11,